This will be a nice boost for Nintendo after a slower year than last year. I picked it up and spent almost the whole weekend unlocking all the characters, I actually love that they did it that way, the way games are meant to give you extra content. The online can be pretty laggy at times but this takes over as my new fav Smash, well done Nintendo.
Looking to 2019 obviously Fire Emblem and Metroid will be big but you've gotta figure they have to have Mario Kart 9 somewhere up their sleeve which is what I personally want most. It feels like we're in uncharted waters, as there hasn't been too much announced too far into the future for first party stuff.