SMT X FE (though I'd rather have just a Fire Emblem game in the vein of Awakening/If on 3DS but in HD! :D ), Animal Crossing, Paper Mario, Pokken Tournament. After that...I feel like it's up in the air. Metroid possibly? I'd be really surprised (very pleasantly) if there was another 3D Mario game. Honestly not sure there'll be too much for 2016 and beyond. But we'll see at E3.
A part of me almost thinks they'd be better off focusing on having some BIG games ready for the next system's launch. I think/hope they're already doing that for the 3DS successor, which is why I think we may get more ports like Xenoblade on 3DS for the next year or two. Cause they really screwed up both 3DS and Wii U's launches with very few must-have titles for their first years, AND overpricing the systems.
Upcoming Games To Get
Definite: Kirby Star Allies (Switch), Mario Tennis Aces (Switch), Fire Emblem (Switch), Yoshi (Switch), Pokemon (Switch), Kingdom Hearts 3 (PS4), Monster Hunter World (PS4)
Considering: Fe (Switch), Donkey Kong Country Tropical Freeze (Switch), The World Ends With You (Switch), Ys VIII (Switch), Street Fighter V: Arcade Edition (PS4), Kingdom Hearts 2.8 Remix (PS4), The Last Guardian (PS4), Shadow of the Colossus HD (PS4), Anthem (PS4), Shenmue 3 (PS4), WiLD (PS4)
