Nintendo would make so much money for compilations. They could charge them full price and do multiple for several franchises.
I'd buy em up that's for sure.
I'd love a Donkey Kong Country compilation, with all 5 entries. They could do a smaller one with the handheld Land and Country versions. Do an obscure collection too with DKonga, Jungle Beat, Barrel Blast, 64, King of Swing, etc.
They could do a second Mario 3D collection with 3D Land, Galaxy 2, and 64 DS. A New Super Mario All-stars with all 5 games (Luigi U counting as its own).
Luigi's Mansion 1+2.
F-Zero: just throw em all in one, theres not too many any way lol.
Zelda 2D: A Link to the Past, A Link Between Worlds, Minish Cap, Link's Awakening (GB version), the first 2 games)
Zelda 3D: All 4 remastered games so far (OoT, MM,WW,TP), they could probably get away with selling Skyward Sword on its own.
I could go on. Just simple resolution bumps would suffice for me. I'd eat em all up in a heartbeat.