Naaw man, it's a Porsche, not an Audi

. AWD would only come to use in slippery conditions. The Cayman doesn't need any more electronic assistance, it's handling is 100% perfect.
I also don't think that there is a high demand for a AWD Cayman. Therefor I don't think we will see one. The only reason there is four wheel drive 911s is to prevent unexperienced people from getting into trouble because of the engine configuration.