It's not a problem with the movie itself but there are so many storylines surrounding cap, tony and crew that need to be resolved before they fight thanos and I don't see them covering it in the new character solo movies
I mean, to me it seems like the only thread to close is the fact that the team is not together. I would think that an external threat like Thanos would be what's needed to bring them together.
My guess is that the original core is not going to be together until part 2.
Part 1 is likely going to be a mix of the phase 3 ppl with some of the OGs and than the rest being elsewhere.
could be wrong but when he dropped the shield at the end I took it as he was giving up the captain america mantle for now, especially since he rescued his team from the prison without his uniform on.
I hope it's not an iron man 3 ending where by the next movie he's just back as cap like nothing happened. I doubt it though since the russos are also doing the IW movies.
Also bucky being put on ice, which they need to fix his brain and unfreeze him if he is joining the team in IW
Although now that I think of it, if they use the mind gem or some other comic book plot device in the black panther movie to cure bucky and through out the movie he earns BP's trust and gets a vibrainium arm then things would be so lit.