I think everyone by now believes it will be a hybrid system, but I don't think it will be as powerful as an X1 or PS4.
I can see them releasing 2 bundles, one aimed at the console gamer and the other at the handheld / mobile gamer.
I can see the handheld being $250 and it coming with a charger, a game and Super Mario Run.
I can see the console being $399, but it having a 250GB hdd, docking station and controller.
They will probably still the docking station with the pad for $149 separately.
I can see it having NFC built in to pair with phones and maybe even the docking station.