I think a subforum for The Lion Guard is a good idea. I think it's fine to add it to the Jungle, since The Timon and Pumbaa subforum is there, and that is a TV show as well. As for the name, I think "Return of the Roar" or just "The Lion Guard" is good, I would be fine with either. But I wonder if "Return of the Roar" might be better since the Timon and Pumbaa subforum is called "Hakuna Matata", not The Timon and Pumbaa Show.