The final update is here
tl;dr:
-The battlepass, Aquaman and Lola bunny added and are avaiable for FREE
-Shield recovery nerfed and hitpause reduced which is an indirect nerf to shields
-Reduced hitpause also makes a lot of combos and chains come out faster so the game is overall faster
-Significant kit changes to a lot of the cast, like smith losing jab uppercut, shrinking iron giant, killing jasons bounce combos
-Aquaman doesnt look too strong but he's very well animated. He's nubia with water splashes, a tentacle and blowfish summon.
-Lola looks simple, a lot of multihit kicks and strong kicks. She has a heart kiss stun like Bugs and a basketball projectile like lebron but her basketball has no cooldown at the cost of only 1 so i can see that becoming cancer real fast.