That's hard to answer after the other thread as we are basically looking for games that will sell between 10 and 20 million units now. Ok, I'll give it a try, my estimated sales potential in brackets.
Breath of the Wild 2 (10-15m): This definitely has a good chance, unless they botch it.
Pokémon Diamond / Pearl Remake (10-15m): Pokémon remakes usually sell over 10m copies. I don't think this will get much of a "Switch boost" as the series is dreading water somewhat but it should sell over 10m.
Rhythm Heaven (5-10m): What's more interesting are series that usually sell in the multi-million range and could be boosted by the Switch. Rhythm Heaven is one such game that could become a surprise breakout hit. Price will be an issues here, it won't sell 10m at 60$
Wario Ware (5-10m): Same goes for Wario Ware! If the game is good, lots of people might pick it up. Same issue with price as Rhythm Heaven.
Tomodachi (10m?): This was huge in Japan and could get huge again.
Paper Mario (5-10m): I think a traditional Paper Mario has the chance to easily sell more than 5m units. Will it make it to 10? I don't know but there's a chance.
Clubhouse games and other "casual" / mass market games (5-10m?): This could go either way, depending on how much Nintendo pushes games like these. If only gaming enthusiasts know that Clubhouse games exists, it won't sell well. But if Nintendo actually markets it this has the potential to be a big seller.
Nintendogs Switch (10-20m): The 3DS version only sold low because the game was targeted at an entirely different demographic than the 3DS hardware at launch. The console itself was expensive and Nintendo themselves did not encourage children to use 3D. But Nintendogs is aimed at children, so... If they release a new one on Switch the series could explode in sales.
Traditional Nintendo IP like Starfox: Thanks to the "Switch boost" traditional IPs like Starfox could sell up to 10m units on Switch. The IP needs to be mass market compatible, though. I doubt F-Zero would sell that well, but it would also receive a sales boost.
That's all I can think of right now!
