Honestly I think if they did an N64 mini with 4 controllers, Smash, Mario Kart 64, and Mario Party 1-3 it would sell well enough. The problem is aside from the multiplayer games, the most important N64 games got remastered or ported to new platforms already, or are in Rare's catalog. They should just leave it in the past and skip to the Gameboy/GBA
Mini GBA with localized Fire Emblem 6. Do it Nintendo. Give me the continuation of the unresolved cliffhanger.
(Yes, I am well aware there are fan translations- I prefer official ones when possible)