If they did a season 3 they would've done it by now, such a pity it ended too soon, and well if they did they should add monsters like Grendel, Hydra, Chimera, Leviathan, Kraken, Rumplestiskin, and even Fathnir. Also they should rename on Frankenstein instead of a blasphemous name (Legion), and even give the cast like a new generation, and the original main cast as the mentors.