Avengers: Endgame: 12 Post-Credits Scenes We Most Want To See

2. The Silver Surfer Heralds The Future

When you think about it, the easiest way to announce the arrival of Fox's Marvel characters to the MCU is with a herald. And there's only one herald in the Marvel universe that any casual fans really know: the Silver Surfer.

Sooner or later, Marvel Studios WILL pull the trigger on a Galactus event, and having the Silver Surfer appear to warn the Earth of a massive change in the make-up of the multiverse would be the perfect way to seed that in the long-term and the arrival of mutants and the Fantastic Four in the short-term.

How about having him appear to Doctor Strange - another protector of the multiverse, remember - to inform him that the Infinity Saga had far more dramatic effects on the multiverse than they could ever have imagined? No commitment would be needed, but it would announce the intention of a whole new raft of stories.