Rayman Legends: Definitive Edition is now out on Nintendo Switch, and plenty like this scribe may have an uncertain finger hovering over the purchase button on the eShop. It really depends whether you still have another version readily available to play (for example, if your Wii U is unfortunately unplugged), or if you particularly fancy playing it on the go.
As is often the case, our chums at Digital Foundry have taken a look and have pinpointed a few errors by Ubisoft in the porting process. Compressing the assets for a tiny file size may have contributed to long-ish load times, for example, and DF highlights some of the play options missing that could have theoretically made the cut.
All of that said, it's a solid version of an outstanding platformer; the question, really, is which platform to play it on.