It's quite possible that it's the concept of shifting that your subconscious is getting at, rather than the point of the dream being the actual werewolf. What do you associate with werewolves? Personally, I associate them with nature, primal instinct, shadow self work, loss of habitual consciousness in exchange for a new perspective, and sudden change. Not saying werewolves are real, but it is interesting to look at them from a psychological stand point.
Or, alternatively, it could just be that you like werewolves or that they aren't actually significant at all. Calling the dream up during trance could help sort that out.