Well, I doubt we'd get a Hawkeye Mech. Iron Man makes the most sense, Thanos is... well I mean it wouldn't make sense. I'm sure Hawkeye is thrown into like a comic Spider-Man set. I'm hoping there's still more Endgame coming beyond the Helicopter Drop, but with a comic Hawkeye coming, that may not be the case. Heck, Thanos isn't the comic version, so the Mighty Mechs/Micro Mechs might not even be comic-based.