That's your choice, they are your heirs. Remember you have to choose an heir that is different from your founder so if you're founder is a witch and you have a human because he's a ghost then that human is your heir. Ghosts can produce ghosts or humans and even though he was a werewolf before he died, he may not retain the ability to pass on those genetics.
Edit: Just be aware that the ressurect wish may not be granted because you're not feeding him ambrosia. I have yet to have it work with the other forms of rezz.