Thoughts to consider
1. Toy leaks have showed Valkyrie. In the first EG trailer, we see Thor exiting what looks like a crash ship on a desert like planet. Liking trying to find Asgardian remnants. Count on her being in the movie.
2. The white suits are likely dual space suits and Quantum suits. I would expect the avengers to use them heavily in the second half of the movie.
3. I would expect at least a figure for Mark 6 WM. There have been proton cannon rumors for awhile, and a bulky WM likely has the capacity to carry it around. Probably a deluxe figure release.
4. Not sure how time-travel/parellel universes will work out in the movie. One thing I have considered is that the quantum suits make you outside of norma time/space...but so does the infinity gauntlet (time-stone.) So if Captain America and Iron Man are doing something wonky in the past, it might alter the future, but the avengers would be aware of the changes. I think everybody getting re-written back into present day will happen (except the inevitable original member death.)