There may be several months until we even see a first trailer for Avengers 4, but it seems likely that the upcoming movie event will still be the most talked about release of the next year.
We already have a fairly good idea of the directions of the story thanks to that devastating ending point for Infinity War and the motivations for all of the surviving characters, but you can guarantee that there will be shocks and twists to rival those in the first Infinity Saga movie.
Inevitably, with a gap in knowledge and unprecedented hype for Avengers 4, speculation on what we are going to see in the sequel has been rife. There aren't many fans who won't have already come across a good number of rumours and theories dedicated to the post-snap sequel and a lot of the speculation and leaks actually sounds pretty compelling when you start to rate them for probability.
So, what are the big rumours for Avengers 4 so far?
With Disney apparently set to take back the rights to the Fox-owned Marvel properties, Hugh Jackman's Wolverine could turn up in Avengers 4 as a means to bring the X-Men and the Avengers together.
Speaking at the Avengers Infinity War London fan event, Joe Russo said he'd love to use Logan in future Avengers movies:
"You've seen him in other movies, but if that Disney Fox deal goes through, I'd love to get my hands on Wolverine. He was one of my favourite characters growing up."
It's highly unlikely, particularly with the Fox/Disney deal still up in the air. It's really not enough to say a director saying he likes a character is evidence of it happening. And as Jackman himself said in response to this very rumour, he's already out of the role:
"But I think, unfortunately, the ship has sailed for me, but for someone else I would like to see Wolverine in there."