Despite the fact that the World Superbike series kicks off on Sunday, the provisional calendar is still very much in a state of flux. Rumors emanating from the WSBK paddock, gathered at Phillip Island for the 2013 season opener, suggest that major changes could stilll take place to the calendar.

The biggest change is that the UK round, set for Silverstone on 4th August, could be dropped altogether, and replaced with a round in Turkey, at the spectacular Istanbul Park Circuit in mid-September.

The rumors, reported by German-language website Speedweek, and confirmed by other WSBK sources, state that Silverstone is to be dropped because the circuit cannot afford to pay the sanctioning fee previously agreed with Infront, and now being demanded by Dorna.

Crowd numbers at Silverstone for World Superbikes were always low, in part because the flat nature of the circuit made viewing difficult, and in part due to relatively high ticket prices, which meant that ticket sales did not generate sufficient revenue to cover the circuit’s costs.

The date of the German round of MotoGP at the Sachsenring is once again surrounded by uncertainty. A minor readjustment of the Formula One calendar means that the German F1 and MotoGP races are once again scheduled for the same date, July 7th, meaning that the Sachsenring race could well be forced to move to the following week, July 14th being an option, according to German-language website Speedweek.

The provisional MotoGP calendar has taken a little longer than normal to appear. An initial calendar had been expected at Brno in late August, but no calendar was forthcoming at the Czech Grand Prix.

The next rumored date for the calendar to be released was the weekend of the Misano round of MotoGP, but once the paddock assembled at Misano, it became apparent it would emerge a few days later – we where then told by an IRTA representative that the calendar would be announced on Tuesday or Wednesday this week.

On Tuesday, the Austin Statesman newspaper reported that the calendar would be out on Friday, but the excessive enthusiasm of Loris Capirossi saw the former racer and current MotoGP safety advisor leak the 2013 calendar on his Twitter page on Thursday night.

After much speculation that MotoGP would forego stopping in Portugal this year, the premier motorcycle racing series will keep five stops on the Iberian peninsula on its 2012 MotoGP Championship calendar after all. With the Portuguese GP struggling to make ends meet, it was thought that Estoril would be dropped for 2012, as it seemed increasingly clear that the local government was not going to step in and help subsidize the cost of hosting MotoGP in Portugal. Coming to some sort of accord with Dorna & the FIM, MotoGP has confirmed that Estoril will remain on the schedule for this year, though its future is certainly still tenuous.

The FIM has released its 2012 calendar for the e-Power Championship, the motorcycle racing authority’s electric racing series. Disappointingly, though perhaps not surprising, the five-stop schedule is very Euro-centric, with only the Laguna Seca breaking the e-Power Championship out of the Europe. Similar to last year, e-Power will piggyback off other FIM events, and will share its race weekends with the FIM Endurance World Championship, FIM Sidecar World Championship, and MotoGP.

Finding a way to justify double-dipping in France, at the start and end of the series, there was hope that the FIM would bring more events to the US for 2012, especially considering how many potent projects are underway in the United States, especially on the west coast. With two MotoGP opportunities and one World Superbike stop in 2012, it is a shame that the FIM did not add another event at either Indianapolis or Miller Motorsports Park for the e-Power Championship.

Finally finalized, the 2012 MotoGP calendar hasn’t exactly seen a huge revision from last season’s schedule, though it does put to rest some outstanding issues. Previously only listing Germany as a stop for MotoGP action, the Sachsenring’s name has been inserted as the venue to host the German GP, subject to the circuit coming to terms with Dorna of course.

Also still subject to contract, Estoril has yet to come to a full agreement with the MotoGP rights holder. Other changes include the confirmation of the Spanish GP at Jerez, and that the season-opener at Qatar will come a week earlier than last season. For 2013, MotoGP’s calendar will include a stop in Argentina, as well as an additional round in the United States.

The 2012 provisional MotoGP calendar is out, and while all the basic locations remain the same, next season does see some shuffling in the order of things. While everything is still subject to some change, perhaps the biggest change on the roster for next year are the back-to-back US rounds, which sees the Indy GP moved up a week, and the Czech GP moved down the calendar to accommodate for one solitary trip to the United States. Allowing for a more streamlined supply chain for the MotoGP traveling circus, this change should be a welcomed one in the GP paddock as teams, journalists, and support crew won’t have to make two trips to the US in quick succession.

The other big change of note is the “TBC” for the venue to host the German GP. With Sachsenring reportedly out of the 2012 calendar because of event unprofitability, it remains to be seen whether Hockenheim or Nurburgring will replace it for next year. Should another German venue not be secured, it is entirely possible that we could see the German GP dropped from the MotoGP calendar in perpetuity. Speaking of dropping off the calendar, with Jerez still dealing with its creditor issues, it is also entirely possible thst we could see the Spanish round dropped from the final calendar as well, making this provisional calendar carrying a heavy emphasis on the word provisional.

In the background of MotoGP, a quiet battle has been raging since the Australian GP at Phillip Island. A venue always threatened with inclement weather, the Australian track always manages to muster sunshine on race Sundays, despite the fact that they have all the makings weather-wise for a good regatta, not a motorcycle race. Despite this reality, the issue of running the Australian GP earlier in the race season comes up every time MotoGP gets a whiff of rain, wind, or kangaroos that could threaten the coastal track, as the late scheduling of the GP has historically been during the country’s rainy season.

Pressure to move the Australian GP to earlier in the season seemingly found its stride this past season, as Valentino Rossi and a number of other riders openly expressed their frustration with the circuit’s weather, and the pending safety concerns it meant for the riders. Talking during last season’s race, Dorna CEO Carmelo Ezpeleta seemed all but certain that the venue would find an earlier slot in the calendar for 2011, despite the scheduling conflicts with WSBK and Formula 1 in the earlier months of this new year, and the nagging problem that Phillip Island doesn’t want to move the venue date.

Fielding questions at the Ducati/Ferrari Wrooom event, Ezpeleta again was asked about the issue with Phillip Island, and his response to the track’s position that its contract with Dorna prevents a change in the calendar positioning (PI is contracted until 2016). Talking to the assembled press, Ezpeleta fired a clear warning shot across the bow of the Australian track when he said the track’s homologation could come into question if calendar changes aren’t accepted. “We are talking with them.  It’s true, they have a contract, but their circuit is subject to homologation,” said Ezpeleta. “If it (the Phillip Island track) is not homologated, the contract will be void.”

After releasing a provisional calendar that left some venues to be determined, World Superbike has finally released its official schedule for the 2011 season. Leaving the European and Italian rounds empty back in October, we see Donington Park and Imola now official added to the roster. While the addition of the two historic circuits is certainly not the most surprising news, it atleast completes the WSBK calendar.

Good news for British motorcycle racing fans, as Donington Park has secured a spot on the 2011 World Superbike calendar. But the real good news for the Brits is that WSBK will come to both Donington and Silverstone next year, giving the sometimes rainy island a double-helping of production-based international motorcycle racing.

The announcement signals the rescue of the British track from what seemed like certain death, after planned renovations fell through and the track was unable to secure a Formula 1 bid, leaving the Donington Park leasees without a dime to spend, and without a track circuit to run (construction had begun to make the track conform to Formula 1 standards).