I think Inhumanoids has a lot of room for new characters, be they heroes, villains, or awful nightmares. It is practically a requirement that a show like Inhumanoids have a giant aquatic monster (I'd personally like a sea-terror based on an anglerfish, or some other scary creature from way down in the deep-darks), and a new member of Earth Corps. who specialized in, say, dimensional probability or comparative planetology could open up whole new worlds (literally) of terrors from beyond our solar system._________________
Requiem's alternate ending!