I don't think the Portal will ever go away. There has to be some changes. Changes to somehow compensate teams that are losing players. More schollies? Paid for years of training, coaching, medical, tuition, room, board, etc from receiving schools? Then what happens to the kids in the Portal that don't get a DI school to pick up their full ride? Some say that 30%+ will be without a full schollie this coming year.
Sure, there will be huge advantages now for the top programs as they pick off the best couple players from the middle programs like WVU. We lost 2 starters to P5 CFP contenders. Then we picked up a number of players from lower schools that put time, effort and money into developing these kids. But not at the quality we lost.
And it will be those lower schools that have to pick players that are left over from the Portal to fill their vacated slots. Some will be an upgrade, most won't.
For the most part, this volume of transferring destroys the continuity of programs. Continuity that is built by players staying around for the full 4 or 5 years.
This may be good if college sports were here only to develop NFL/NBA/MLB players. But it's not. Those that think differently are foolish.