Re: From WAR MACHINE to IRON PATRIOT and BEYOND
It would be a harder sell, but I don't think it's impossible (there were rumours of them considering a War Machine movie). He has a similar power set with the suit, but as a character he can go places you can't with Iron Man. If the story is substantially different from the Iron Man movies then I think it would be excusable.
I'm not really a fan of using a War Machine movie to introduce anyone let alone Valkyrie. I think anyone who appears in a War Machine movie should be more of a natural fit to his world and not something from another franchise under the Marvel banner.