I'm gonna say...
Pretty much guaranteed we will see:
Kirby Triple Deluxe for 3DS
Yoshi's Island for 3DS
Bravely Default for 3DS (maybe a demo for US?)
DKC TF for Wii U
Mario Kart 8 for Wii U
Any other Wii U or 3DS guesses?
I don't think Bayo or Smash are likely to be there, after Sakurai's Tweet about Smash yesterday.