I don't know that it'll "even out", it's not even now. I just think there are going to be a lot more transfers every year in and out of every program.
I don't think boosters paying players through NIL to go to a school but not take a scholarship spot will be sustainable in the long run. Most players still want to see the field, especially if they have NFL aspirations. I don't see most players taking NIL money to be the 90th spot on a roster if they can get a scholarship and play somewhere else. I also don't see boosters giving $20k+ to players who never see the field. They'd rather give more $$ to get the star players than worry about getting a guy to be the 4th string middle linebacker. I could be wrong though.