Putting aside all the things that have already been said about sakaar LRs. The best thing was having different boost options to play with. I really appreciated having the choice to use hulk, chulk, meh hulk, 3*thor, thoress, gladiator Thor. It really begs the question of when will we get refreshed LR themes???
Putting aside the question of additional rewards, smaller brackets etc.. The format could easily be freshened up with Avengers week, Xmen, Only wolverines, Only Storms etc…
The format could even be used to test out expirmental pvp formats.