All Star

Yes, once you save over that slot, the alternate attire is gone. I wish we could add alternate attires without burning a save slot on them. It would be a lot better if the devs just provided more alternate attires for guys to help combat that problem.
The return of Superstar Threads would be great as well. One of the best examples of the use of that is Bret Hart. Bret had a TON of alternate attires that reflected the different attires he wore in his career. There are a lot of differences in the attires he wore over the years. If they gave us something like that for everybody on the roster Superstar Threads could really eliminate a lot of the need of creating entirely new versions of guys.
For example Triple H. If you give me one attire for Triple from the Attitude Era, I would need to burn a save slot or two creating multiple looks for him because they only gave him one attire. If they gave him say four attires I could use Superstar Threads to make an additional four attires for one of those original four different attires. I could make an original DX era Triple H who's tights are significantly different than the tights he wore after he took over as leader of DX and I could make four different colorways of that attire saving me the CAW spots I would have to use to make those tights if they only included one attire of his that wasn't that one. I'm hoping this is the year they hook us up. At least get it in next year please lol.