I've seen her but I have been a little lazy this past month or so. She is on my to do list.
The funny thing is she seems to be clearly a head swap or some creative combining in this case because the seller was selling Rarity with DJs head and DJ with Rarity's head.
Also there is a Blossomforth head on Rarity's body too I believe.
Anyways, there's them, some purple pony that is part Sweetsong, and that wonderful long haired Fashion Style Shining Armor. We haven't really seen anything much lately in terms of new Franken ponies or possible prototypes though. I think the Shining Armor is a good candidate for actually being a form of prototype or sample ordered by Hasbro though.
Expect updates soon