We have talked about adding werewolves as a racial add-on (like vamps & ghosts), but were concerned that that removed the uniqueness of the were-kitty races.... not that we don't already have overlaps (for example, don't get me started on the number of elven races we have...).
Don't know that we've talked about doing a canine race though..hmmm... maybe a human polymorph race that can do wolves, bears, and ... seals?