Here are some more of my ideas, I might even edit this post with more if I have more!
Bigger maps (You've probably seen this one before.)
Better, updated, and more realistic animations
Presets automatically downloading when you play the game
Claws!!!
A report button
So how this would work is that, when you click on a fellow player, it just has the normal options have block, friend, add to group, etc. And then the report button. When you click it, it gives a list of reasons why this player is being reported. Such as; Bullying, inappropriate behavior, excessive bad words, and hacking. (quite rare and unlikely, but you never know.) Once you select one, you have an option to type additional information in a box, if you don't have any, you just then you just click a button that says "send". Then it alerts all current moderators, then (a) moderator(s) responds and looks over the report, and the player either gets suspended(or banned) or left alone if falsely reported.
More realistic teeth
If you've looked inside the mouth of your carnivorous pet, (Dog or cat!) it isn't all just sharp teeth! In the middle of fangs, there are some flat teeth!