Personally, I'm excited with several info for the upcoming Sun and Moon, I like how they've shown Alolan Rattata, along with Z-Moves for Alolan Raichu and Snorlax, the latter's Z-Move was pretty hilarious given that Snorlax sleeps (almost) all the time :P
As for Super Mario Maker for 3DS, I didn't expected it a bit, but I'm still psyched that I may be able to play my custom Mario stage all by myself. Probs I will buy it just for the sake of mastering Mario level myself!
Besides of that, I'm also interested in Disney Magical World 2, given how I've enjoyed its previous iterations back then, I might buy and pre-order the game when I'm on it. I also enjoyed several parades that is showcased there as well.
Speaking of another Mario game, I've been looking forward to Mario Sports Superstars because I like how they combined 5 games into a pack, I might be able to enjoy it soon!
However, I was concerned since I have seen more Wii U games gets ported to 3DS in some way (even though I'm still interested in Super Mario Maker as mentioned above), when seeing this, at times I worried if Wii U would perform well, even though I think these games are pretty good as well.