Well, my main thought
Super Mario Galaxy 2 was a mistake.
It is only for Yoshi fans who simply can't stop contemplating the beautiful animation of him going backward when he drags things with his tongue.
Seriously though, it's lolful that it wasn't even featured in the medley, even if I always thought that Super Mario Galaxy 2 was never as good as the first (if anything the intro already told you how the first one had a far greater aim and scope than the second).
It's funny how Nintendo seems to agree with me in the idea that SMG2, NSMB2 and NSMBU just couldn't really go beyond what the previous games already had done. I still think that NSMBU is a bit too much punished, as the attention to the art direction (especially with the Van Gogh-styled level) and Nabbit should have warranted it a better reception than it had.
Other than this, the lineup offered is pretty solid considering how we weren't going to get a new Super Maro game this soon. Super Mario Run too is going to get an update between November and December, but oddly they didn't announce it yet except on iOS because of changing OS support.
Donkey Kong Jr. is finally featured in Mario Kart Tour... but it's just his old sprite. Eh, better than nothing, I guess...
The Mario Kart game is cool in terms of concept, we'll see the execution. I like how now the Koopalings are basically the Mario Kart drivers, even the Super Nintendo World trailer confirmed that their true job is being Mario Kart racers, the role of bosses is now their second job at best.
The 3D All-Stars name is appropriate but effectively a bit excessive considering how even Dolphin can do more with Super Mario Sunshine, the SM64DS content would have been nice, but honestly between a basically-emulated SM64 and a basically-emulated SM64DS the first is still better in my opinion both in terms of historical relevance and in terms of gameplay (the controls of SM64DS are atrocious).