Pony apparently got a pretty major animator on board early last month, but the announcement fell under the radar. Michel Gagné has been involved in some of the biggest kids projects out there, from The Land Before Time to American Tale and All Dogs Go to Heaven. He is currently hard at work on Sony's animated Spider-Man movie, but plans to hop over to pony as soon as he is done on it.
You can read about it over on his blog.
Thanks to Zak Wood for the heads up!