✔ 最佳答案
New games will come. They take 2-3 years to make a new game (more if Zelda is in the name).
It's easier for them, for the short term, to port/enhance Wii U games for the Switch so they have games out there in the first year while other new games are in the works.
If you already have a Wii U, these enhanced ports really aren't designed for you. They are designed for those who are picking up a Switch that never owned a Wii U, so for them these games are new.
Rumor is that Splatoon may be a pack-in, which I was in the minority who didn't like it, so that's one game that I will get that will probably never play, for a second time. Looking forward to the new Mario and Zelda games, though. And Pikmin :)