Given that image of Zipp. What if she has heterochromia and it is bullied because of it? Then she finds Sunny Starscout and the others and they become friends because they are all rejected by their differences. Pipp has 'weird' wings, Sunny wants to be friends with other species, for Hitch I don't know what it would be.
I think there's supposed to be two male characters in the main cast, and if it follows the same pattern as 2 per species, then the male character should be a unicorn. Assuming Pipp (Zipp's twin sister) is a part of the main cast.
@Background Pony #3112 Looking at the text, it has numbers that count "6" for the Mane Six and "5" for the G5 characters, despite being advertised with 12. I can't read Chinese, but from what I can understand it does seem strange.
Okay, so how old are our new main characters? Foals as suggested by this EQD comment? I'm personally thinking high school/college age, but that's just me. That bag does look like it could be a filly guides bag, with the medals, though said medals are of M6 cutie marks, and she's a blank flank, though magic has gone and cutie marks are tied to magic as seen in Twilight's Kingdom…
@Wiimeiser Haha. My reasoning is I think the characters should be old enough to be able to live alone and have jobs (Hitch definitely seems like some kind of guard or police pony), but still young enough to draw in their targeted audience (I’ve noticed most kid shows don’t use adults as main characters).