I'd love to see more actions added, besides the occasional move of a paw you see on every character. I also thought it'd be kind of nice if it looked more like the character was breathing, like a slight rise/fall of their chest.
Levels, pvp, and battling might not be a good idea, since the game was based around roleplaying. There would most likely be players who just want to roleplay, not fight, and end up with low levels/experience, and then have players who fight all the time with much higher levels/experience. It would be fun if there was some kind of battling or pvp in the game for better roleplay, but not so much that it would be distraction from the main point of FH.
edit: Hunting would also be nice, as long it was used for roleplay, not leveling.