Having just seen the Direct...
Seems like the update is everything I was hoping for and somehow even more! It adds amiibo that give you more control over who's in your village and more Nintendo crossover elements, embeds minigames into the game (reminds me of the GCN game), adds in the HHD UX improvements, gives you daily and weekly goals (seems kind of counter to the AC design philosophy, but since they're optional, I guess it works and excites me!), provides more storage, adds a photo mode, and even incentivizes a convenient way of starting over. All of that sounds cool.
I don't really have any desire to jump back into New Leaf, but it feels like this update just gave New Leaf an even stronger argument for being the best Animal Crossing game yet. I'll wait and see what the future brings for the franchise, but this update really has me excited for the next game!