They may as well go with a gimmick focused console at this point, they simply can't compete with Neo/Scorpio on power so that opening is basically closed to them.
I just hope the chipset isn't a complete piece of crap like the Wii was. Gimme 1 TFLOP + 4GB of RAM (which is freaking low) and I'll be OK, that's at least a decent upgrade over the Wii U.
Whatever the gimmick is it better be something spectacular and easy to understand.