I totally expect them to announce 3 years of content. So Black Widow, Eternals, Shang-Chi, Doctor Strange 2, Black Panther 2, Thor 4 and Guardians of the Galaxy Vol. 3. And one more maybe, maybe two if we're lucky.
We will get full title reveals for them all. They'll announce the whole cast for Eternals. And if we are lucky, they'll bring out Shang-Chi himself. They will also give us little details for each movie like they did during the Phase 3 reveal. And show concept art for at least Black Widow, Eternals, Shang-Chi, Doctor Strange 2 and GotG3.
That's what I expect.
The thing is, I also want to be surprised. So I'm hoping for at least one or two genuine surprises. And to me, that would be something like an announcement for Deadpool, Ms. Marvel or Nova.
I do not expect an Ironheart announcement. That character may have a script in the Black Vault. But there's a bunch of scripts in the Black Vault. I'm not sure what to think of the Avengers franchise. We know Marvel Studios aren't much into repeating the concept of Phases, so maybe they'll hold back for now. I kinda don't expect Young or Dark Avengers. And instead they could mention a Young Avengers movie or show for Disney+ at D23. Or announce an Avengers movie the closer we get to 2023. That said, it would make sense to announce an Avengers on Saturday and get us hyped for the next chapter in that franchise, so I dunno.