Its very possible that Ducati may have approached him, There arent very many factory bikes left. He probably has better offers from SBK teams.
WSBK is in a very good position to kill moto gp right now. If they manage to get Stoner (2014) and Dovi over there, Nicky would probably feel more comftrable with the idea of racing in WSBK.which seems to be his best and only option at the moment. Only leaving Rossi and Lorenzo to follow suit in order to put the dagger in Dornas heart by 2014. It may seem like a long shot but WSBK is an Italian series and Im sure it might have crossed Valentinos mind once or twice before. No one has ever won both the Moto Gp and WSBK crown and thats something Valentino, Casey or Nicky might want to add to the resume.
in 2013 we might be watching Lorenzo Marquez and Pedrosa all chase each other for 19 races with an uncompetitive Rossi behind them followed by a bunch of CRTs. Moto2 is producing some great quality racing but thats because the machinery is more equal, it will all change in Moto gp once the riders go into the moto gp system for example espargo is on a CRT Ianone on a satelite bike and Marquez on a Factory bike its all going to go to ..... There is also not enough room for all the Moto2 talent in the premiere class therefore it will send a lot of those young guys to WSBK.
Call me crazy, call me stupid, call me both, but if I worked for WSBK id be writing some very nice emails and sending some very nice gift baskets to Mr. Stoner, Rossi, Hayden and Dovi.