Once we get to 13 total competitive maps (12 currently with Corrode) there should be a 3rd party tournament with no map bans, just pick order for a Best Of 13 (BO13). Ie: Team A Pick, Team B Pick, Team A Pick, Team B Pick, and so on, through the entire map pool until the Decider Map. Obv the tournament couldn't have more than like 4 teams with one game per day starting early in the morning and possibly lasting all night. First to 7 wins the BO13, invite teams with distinct, adaptable, exciting playstyles and watch them problem solve the entire map pool. Most teams won't have every map prepped or updated for the current meta, so they will have to adapt comps, play comfort roles, or just run it down out of pure exhaustion.
Anyone with the funds to host this feel free to steal the idea. If you pay for the full map pool, then you better use the full map pool. Dream invites would be the top teams; PRX, G2, SEN