MCU Phase 5: Every Single Character Confirmed (So Far)
7. Talos... With Soren? (Ben Mendelsohn & Sharon Blynn) - Captain Marvel 2
Given the fact that Captain Marvel heads off into space at the end of her debut with the Skrulls, looking for the rest of their people spread across the galaxy, you'd have to think that the sequel will open in the same way. Even if she quickly leaves them behind, Marvel's story is currently tied to Talos and his tragic race and to drop them wouldn't make any sense at all.
There's also the small matter of us needing to know how it is that Talos and Soren come to be working with Nick Fury at the time of Spider-Man: Far From Home and what Fury is doing on his mysterious space station with the rest of the Skrull. That might NOT need Fury himself to appear in the sequel, necessarily, but there's too much of a leap between the Skrulls heading out to find their people in the 1990s and then reappearing on Earth decades later for that not to be explored in the sequel.
That presumably means that Talos and Soren at least are a lock.