I'm curious as to what gv they are going to add. Any bets as to if it is the M4A3 Sherman or perhaps the British Cromwell?
Possibly another HVY tank. A Break thru tank like the IS-2

It would make sense, flesh out Soviet armor, balance the Tiger, and be hard to kill with IL-2s. Even the T-34 is hard to kill compared to other tanks with the 37mm guns of the IL-2. You have to come in and high angles and shoot one or two well placed salvos as a heavy trigger finger will only obscure the top armor you have to shoot thru.
I think the IS-2 would be a great addition. So would a tank destroyer.