Well, they're doing G1 reissues this year, so we might be lucky. As far as bringing her back as a character... The best bet on that is the Equestria Girls series, or maybe G5 returning to the idea of humans and ponies interacting.
Wot? Who turned off the join button? You want to join? Ikr? But oh well! I'm working on bringing her back myself XP And something with The Dazzlings too, they are forgotten like Megan too.