The chinese marketplace site Taobao that has been pumping out leaked pony merchandise since the dawn of the fandom has a bunch of completely new brushable figures listed. These guys have completely different models than regular brushables, with pointier noses and curvier bodies. Celestia especially looks really good.
The theory many in the email box came up with us movie based, and considering we are probably getting new actual animated pony models for the movie, it wouldn't be too surprising.
Anyway, get images of each specific one below!
Thanks to Xavier, Twilight Sparkle, and JAMES AKA PONYGUY for sending it.