We've been watching Marvel Netflix shows for three years now and not one of the major characters from the films in the Marvel Cinematic Universe has crossed over to the Netflix universe, or vice versa, though they do share the same world. The bigwigs at Marvel would send snipers out before confirming that any of the Netflix heroes will appear in the next installment of the Avengers franchise -- but that doesn't stop us from wondering how such a crossover would go down.