Soundwave on 09 June 2015
Probable. The Wii U controller is basically a tablet form factor with physical buttons, not sure why some Nintendo fans think that would be such a mind-blowing jump for them. It makes perfect sense.
A tablet form factor also allows for a larger battery, larger screen, and a larger form factor for thermal heat dissipation -- read: you can put a much better chipset in a tablet than you can a cramped little dinky handheld.
So if having Wii U-level graphics or better is part of their strategy (see: Fusion platform), then a tablet form factor may not only be preferable, it may be the only option.
My guess is this is spot on, but it will be something about the size of an iPad mini, which is portable enough.
