Okay, some of these may or may not have been mentioned before. If everything here has been said, go ahead and delete. Dosen't hurt my feelings any, cause the ideas have been already thrown out there. xD
((Edited a little due to some of the posts below.))
~Cheek Tuft for wolves - For that extra fluffiness. I understand that you can customize your check settings, but they look a bit odd just being two pointy things sticking out of your face.~
~Cave maps - Just a couple thrown around in certain public maps, it'd be pretty cool. You wouldn't have to make them very big, but these'd make some kewl hangouts. Then again, lots of loading screens...~
~Fatness and Muscle - The weight bar on the customization. It should add to the checks, legs, and belly of the animal, not make them have a big chest ((Canine)) or be really muscley ((Feline)). There could be a second option called Muscle which made your character look more buff or less, though. For the felines you wouldn't have to change anything on that.
~Language Filter - This is kind of needed, since some people do not follow one of the rules. Most games have this, but to an extreme amount where you can barely talk. If this is ever added, please just block cursing, not 50% of everything in the dictionary. Have an option to where you can turn chat filter on / off so that something like Wolfquest doesn't happen.~