I miss competitive 2's so badly... I know it was never really balanced, but the idea of being able to just pick up and play with one person made it so easy to coordinate. I'm getting kind of sick of 3's being the only meaningful pvp bracket.
1. Unite all the battlegroups to really help out queue times.
2. Make 2s, 3s, 5s each give more points like it used to.. Or at least make 5s do the rbg cap.. that would improve participation SOOO MUCH.
3. RealID arena teams.. Come on, its time.
4. Probably should allow multiple teams... e.g. starcraft system. I really see no reason why this couldn't be implemented, and make the game better.
After these types of things are fixed, then worry about class balance? Fixing class balance isn't going to help a dying game. The reason the pvp game is dying is because people are getting bored most likely. (At least I am getting bored of just doing 3s with one team at a time over and over...)