Cutie Mark Crusaders and Friends

[Japony 12]

in this collection, it features Silver Spoon, Diamond Tiara, Apple Bloom, Sweetie Belle, Scootaloo, Cheerilee, Twist(-a-loo), and a pony named Star Dreams who is a blank flank. Unlike the other characters who have appearred in the animated series multiple times, Star Dreams, apparently, has not. Who do you guys think this is, if she appears in a "and friends" collection with the CMC?