Thanks for all of your suggestions.
We'll definitely be experimenting with some more advanced battle structure.
For example, once items will allow a bigger variance of mech builds, battles based on 3v3 and even 2v2 will become much more interesting as you could change to the mech build that is best to counter the opponent's one. This can result in much more strategic battles than what 1v1 can offer.
So, while right now we're very focused on preparing for the playtests, we're certainly examining more advance ideas, so keep on posting.