Pretty much as I predicted before the arrival of any leaks.
Super Mario Maker's patch is by far the biggest news of the show to me. Keys (or some kind of system for flagging defeated bosses) have been my biggest request since day one, and open up a whole new level of flexibility for Metroidvanias or exploration stages in particular.
Paper Mario looks much like Sticker Star did at its unveiling, with a conspicuous absence of partners in the battle system, which won't make people happy if they were clamouring for another PM64/TTYD. But Sticker Star's primary issues were with its core mechanics (notably the "hard counter" design encouraged by the sticker battle system), and I don't mind a game that is similarly structured so long as it takes advantage of being on a home system, rather than a portable, by delivering a contiguous world rather than one that is broken down into stages for short sessions. Given what they showed of the GamePad integration, I am concerned about the potential lack of off-TV play.
(The American spelling of 'color' bugs me, but America runs the show in NA; what can you do.)
I expected Project Guard to be part of Star Fox from day one. If I'm clear on this, Star Fox Guard is bundled in every physical copy of SF Zero as part of the standard SKU (as was the case with Bayonetta 1+2physically together, digitally separate), but to be honest, from the NA presentation I wasn't quite clear on this.
I don't think the presentation changed anybody's mind on Star Fox Zero or Federation Force, but I say that as someone who was already in the bag for Star Fox and not interested in MP:FF (not because it's a spin-off with no resemblance to a Metroid game, but because I just don't care to use my 3DS for online multiplayer, especially when the health of the multiplayer community for this game is unlikely to be great). I'm also not clear on whether MP:FF is exclusive to the n3DS or just enhanced with the second stick; I neither have an n3DS nor plan to get one, so that would rule me out.
Good call on the localization for #FE: given its target audience, it isn't remotely worth it to do an English dub, which in any case would have been inordinately challenging for a game that revolves around J-pop. It's coming a lot earlier than I expected, too. I'm not particularly keen on the game myself, but will be monitoring word of mouth on it just in case, as it is sure to have an extremely limited print run.
No cross-buy for SNES VC (expected, but disappointing), and surprisingly few details on My Nintendo given that it launches this month; I expected it to be the focus of the show.