I would suggest we wait a while and play low teir comp if we ever do but It be interesting to try. I would sugest highlander (9v9) style so we would have to wait for one person to fill each slot (one scout, solider, pyro... you get the point) Perhaps I'm shooting stars here, but it's just a thought. The nintenbrony competitive league. Has a ring to it doesn't it. I you want to do this leave your prefered classes in your comment.
Preferred classes
Demo, Pyro, Engi, Medic