I’ve thrown out quite a few names regarding the Skywalker like cameo Olsen talked about, Strange, Spidey, Ultron, but I’m now leaning toward Nick Fury
I think the current SWORD director is shady AF, and whatever he’s trying to do (trying to take Vision’s body back for his A.I project seems to be the popular theory) needed him to send Fury to space
But Fury being Fury, he kept an eye on him and he will eventually show up
It could also be Jackman as Wolverine or F4
Personally I would like the cameo to be Deadpool with a bag of popcorns watching Wandavision