Making a game is huge task, and Playtonic is a small team, so you probably see the problem. Do you think there is a possibility of playtonic using models, animations and other various assets that the community will send in, to prevent a longer than necessary dev time?
Perhaps Playtonic could give the community a couple of concept art sketches and we could go to town creating textures, models and animations to suit. Granted that they might not be exactly what their looking for, but at least Playtonic could tweak them to suit, or at the very least, use them as placeholders until they create something better.
It kinda seems like a missed opportunity that there is an avid community potentially willing to create royalty free assets and Playtonic end up burning the midnight oil instead. Just my two cents.