My 2 cents...
I get that the new champs gotta be OP so everyone goes crazy trying to get them, but what makes them so special? Cull Obsidian is the new "oh my God, I gotta have em" champ and rightfully so, but he did lose to a one armed hulkbuster, who by the way is still garbage in game. Dr strange did his thing in infinity war, but still garbage! Not gonna give away any spoilers about Endgame (we still on that right?), but if you saw the movie you would know that a lot of older champs need to be redone. And the new ones being introduced is cool, but what did they really do? Not to mention, it's time for a 5 and 6* Scarlett Witch and redo her abilities for realz!