Models released today are already useful for a bunch of stuff, maybe over the course of 100 year they could be considered "out of date", but they don't exactly bitrot by themselves because they sit on a disk, not sure why'd they suddenly "expire" or whatever you try to hint at.
And even over the course of 100 year, people will continue the machine learning science, regardless if it's legal or not, the potential benefits (for a select few) seems to be too good for people to ignore, which is why the current bubble is happening in the first place.
