WOTLK Server Idea

I know this isn’t a good time with classic coming out but I had this idea for a server where it runs on WOTLK client but once you hit level 60 you become locked at that level and have to complete the classic raids in order to reach the Outlands and so forth.

Are there any progressive servers like that? I think that would fix the problem with servers dying so frequently. The only issue would be some how blocking anyone higher than lvl 60 participating in the lower level raids and boosting their friends to the next zone. Is this even possible? Just spit balling ideas out there since I’ve seen a lot of ideas tossed around lately on how to fix the issue with private servers dying. Let me know what you think!