We should have a rumor creation thread in the forums for people to come up with their best next gen console rumor that they completely make up, choose the best and float it around to see who bites.
I remember clearly how early this gen people went on and on about the GPU capabilities of the 360 and the Cell CPU capabilities of the PS3 and how, in the end, those advantages weren't clear to most of us. Even when the official specs are announced, people will go on and on about potential and theoretical possibilities and, in the end, like ALWAYS, it'll come down to the games and what developers can actually pull off. More than this gen, graphics won't be enough, so we'll find out who the true innovators are out there and hopefully see some new ones arise.