If the rights for Micky expire, then ownership expires. And if that holds for other things, then it holds for NFTs. However where the step misses is NFTs are a

If the rights for Micky expire, then ownership expires. And if that holds for other things, then it holds for NFTs. However where the step misses is NFTs are a single instance, and being a single instance they're more like a Picasso painting. There is an owner of the singular object. The Micky thing refers to his likeness. Creating a copy of his image was restricted. Selling a copy of his original tableau as a real thing is still illegal.