I don't think 16v16 WA/Supremacy wouldn't work, they'd have to just probably tweak AT-AT health etc. I'm just more inclined to think that was an error on his part though because eventually at SOME POINT they have to roll all of this shit into a single playlist and you can't really go from 20v20 WA matches to the next match being 8 players short lol. We'll find out in a few hours anyway.
Also curious to see how team rebalancing works, if at all. Played with two friends last night and we got into another completely godtier WA lobby where we lost one game in like 4 and a half hours, and most games we just completely decimated the other team. I think we did probably every WA map as the Rebels and we destroyed both walkers early in the second phase, and as the Imperials we had multiple games where we held them to one or two Y-Wings THE ENTIRE MATCH. So yeah, rebalancing is a thing that needs to be in lol.
Edit: Sitting on about 120k Credits right now, hopefully that'll be enough for the Hutt Contracts and to buy Wing Guard/Shock Trooper. I've still spent zero credits on any skins >_>