We’ll probably have to wait until the end of WandaVision to see if he gets any synergy. If he’s just an illusion or imposter, he’ll continue to be sidelined. If this is Quicksilver, MCU or Fox, then maybe they’ll throw his fans a bone and have him show up in an event comic even if it is just to be knocked out by somebody slower him.
Of course, you would think that even getting a show would have helped Wanda and Vision, but they still have nothing. Even Darkhold is just plain on hold.