Great, I came too late, now the videos are all taken down because of copyright. What did I miss?
1) Battle Servers and UI improvements
2) New community map added to 2v2.
3) CP adjustment on shock troops and others. Tiger Ace adjustments. Soviet industry now costs 3 CP to activate.
Tiger Ace is being given an initial cost as well as having reduced HP and damage. To compensate, it's significantly more mobile, fires faster and is more accurate on the move. Also, I think Rams don't work against it anymore.
Soviet Industry passive ability is being moved to 3 CP and Shocks/Guards are being moved back to 2 CP. There's a new map and battle servers.