He may return, but it's far from definite. Ferrari have been pushing very hard to get him in F1 and this crash is big enough for Rossi to think twice about returning. He doesn't sound or look all that disappointed to be out of the season either. Rossi's love for 1000cc is dwarfed by that of his old 500cc Honda 2/ so I don't think he has THAT much affection to risk another biggy for the 4/s