I love the idea of WR becoming an Esport. MM and unbalanced player load outs aside.

To get the ball rolling on something like this you can obviously take pages from other games.

Voting before combat as to what mechs will be used from preloaded set up similar to hangar X.
Having light, medium, and heavy categories would breath some life into some of those obsolete mechs collecting dust in our hangars. Especially if a vote system is in play, which would be a test of true skill to be able to use any mech and play it well.
Allowing tournaments for specific game modes in WR would also be a good move. There is strategy for each mode. This would allow for teams to play in mode they prefer, instead of being forced to play random mode they don't (hint hint for Devs).

If this truly does end up happening, I would be more then happy to put together a 6 man team for tournaments.