It wasn't too long ago that people were complaining about droughts on Wii U and this was very much also true of the original Wii. This year alone we are getting/got The Legend of Zelda: Breath of the Wild (probably the best TLoZ game for many), Splatoon 2, Arms, Xenoblade 2, Super Mario Oddyssey (looks to potentially be the best Mario game in a while), and Mario Kart 8: Deluxe as big titles on Switch from Nintendo.
We have a future of Metroid, Pokemon, Fire Emblem, Kirby, and Yoshi to look forward to already. We have no idea what Retro is working on. Smash bros is implictly guaranteed to be in the works too.
It seems as if Nintendo is touching upon all of their main titles, and making everyone happy. Furthermore, there is a potential that marginalized Nintendo IP's that don't compete with Mario, Zelda, and Smash Bros might make a comeback and be given another chance.
I am fully convinced that the unified library decision was one of the best Nintendo has made. I was reminiscing about how the only thing to be "excited" about as Nintendo fans in 2008 when this happened was that we were thrown an unintended Pikmin 3 announcement behind closed doors, and the game released on Wii U anyway. Times were that bad then.
It is crazy how much Nintendo has changed in nine years. Hopefully they continue to even after this success.
