So, during the 2017 toy fair, a few more tidbits on characters for the upcoming Movie were revealed...
EQD Articles: https://www.equestriadaily.com/2017/02/toy-fair-2017-guardians-of-harmony.html
https://www.equestriadaily.com/2017/02/toy-fair-2017-tons-of-pony-brushables.html
My Little Pony Characters and Images belong to Hasbro.