Voyage and Return/The Quest/Comedy
I'd really like to see Rhiannon "come into her own". There're so many different avenues she could travel down such as learning that her mutations aren't JUST mutations but connected to the mystical as well. (Magic, woo!) There's the question of her mysterious parentage (she never knew them, so one of them could've easily been a witch or sorcerer or something) and that could make her want to explore her magical side more (quest?). She's totally down for more "lighthearted" stuff as well, such as romance, babies, general haha-craziness, etc.