Just thought I'd post on this board seeing as it doesn't seem to get a lot of love but has some great topics on it regardless.
Personally, I enjoy how Nintendo recycles a lot of their older franchises...and it's been that way for years. e.g. Zelda, Mario, Kirby etc.
But, I sometimes think it'd be good if they started to create more franchises and more of the "mascot" like characters. (I'm pretty sure Splatoon was the only thing we've had in years that was new from Nintendo. Was Arms from Nintendo also? I haven't heard anything about that game for a while.)
Either way, I haven't looked into it too much so maybe there's been a lot more variety from Nintendo lately but in terms of "the next big thing." I haven't really heard of it.
Keep in mind this is just an idea too. A lot of people enjoy the same stuff. But I think it'd just be great to at least see 2 completely new games. Platformers at that would be great. But I know if anything these days Nintendo has been focused more on multiplayer gaming. Obviously because of the Switch.