Opinion/Commentary by Pete Hitzeman R6Live.com A significant portion of the epic silly season in MotoGP this year involves the future of the series itself, as Dorna seems poised to yet again revise the class rules, starting in 2012. While we're nowhere near any final version of the '12 rulebook, it seems clear that 1000cc engines will be returning in some fashion, be they true prototypes, production engines in prototype chassis (a la Moto2), or some sort of spec engine. ...