Aside from the ones that reached or are set to reach it, I think Animal Crossing, Mario Tennis and Metroid Prime 4 both have a good chance, and Fire Emblem definitely will smash (no pun intended) previous entries numbers.
Pokémon also have a good chance... it all depends on legs. But since Pokémon games will take more time to launch in between them, I think this one has a good shot. 15m+ first quarter is my modest guess.
EDIT: Forgot about Smash. It's totally outselling the previous entries, and I bet it will achieve it on the first year on top of that. Mark my words. PS: If it's a new game, of course.
Bet with Teeqoz for 2 weeks of avatar and sig control that Super Mario Odyssey would ship more than 7m on its first 2 months. The game shipped 9.07m, so I won
