The 2D Pony MMORPG is still truckin! Urimas just sent me a new set of concept sketches to showcase some of their designs for ponyville. Now that they aren't distracted by all the new pony memes every single episode spawns hundreds of, their focus is 100% on building the game.
They are still looking for a few more people to help though if you are interested! Spriters, Artists, and Coders are more than welcome to apply for the team.
If you are interested in helping out, check their forums below, or bother Urimas on his DA page