BuZZsaW is an excellent choice who should be competing for the World Title immediately. That being said, why not team him with LaZeR?
Red Pirate Rogers was a given. One of the best curtain jerkers in the game, IMO, and I'm thrilled to see him come in. He can team with Arizona Chance, and it'll be awesome.
Keith Blood and Slashmaster are both good choices as well. I like the fact we're getting new tag teams!
Dangerzone! Another great pick, and I'm surprised it's taken this long.
As for the tag team in Promoter Prime -- it has to be... MegaDudes? That'd be excellent -- Dude Brohan and Valedictorian. Metalheads is more likely though. Mullet Cousins? Nerd Alert? All possibilities~