Personally I'd rather there be no cash shop except maybe for things like having a second character on an account and justhave a subscription every month of $10 or so. I want to have the most awesome looking weapons and armor because I spent time earning them, not because I spent a few dollars on an item in the shop.
A demon, then i want to become an angel.
As @Rofus said new races are never a bad thing as long as they are done well but they should really get what is planned done and released before then.
One thing that might be cool are hybrid demon/human or beastman/human races but I can't think of a lore reason for that happening that fits with what we've already been told