I just got one from TRU today. Still really surprised to see these in stores so early (it's not even close to the end of August yet, people!) but she's pretty cute. Tinsel in her hair and glitter on her horn, I guess those are the major differences besides the barrettes and comb. Cute though, I'm glad they actually put out something different from the rubber dresses. ;p Glad I waited to pick up one of these new ones though, it'd have been annoying to buy a regular one and then see the cute winter set.
Keeping my fingers crossed for more of the creative winter ponies, but I'm thinking probably not... If anyone needs one, there's a few more at the store, I can do a pickup + shipping. Weird to see them next to the Halloween Ponyville tubes.