I won't smugly pretend to know the future of the MCU or how the next films will turn out, but on a personal level I'm more curious to see how and when the X-Men will become part of it, fingers crossed adapted by people who know and love the characters. And more importantly, get more info on X-Men '97 season 2.
Also, might be me, but I feel that the cameos and special character appearances in 'Deadpool & Wolverine' worked so well because they were kept as surprises that we didn't know about (most of them) years in advance.
https://www.ign.com/articles/chris-evans-returning-to-mcu-to-join-robert-downey-jr-in-avengers-doomsday