Rumplestiltskin is open. That being said, Rumplestiltskin the little gnome who wants to make deals and has anger issues? Perfectly fine. The Rumplestiltskin from the show, nope. Bear in mind, in Faircastle there is no real magic, just maybe a little trick here or there, certainly nothing close to what exists in OUaT, so at best they are what they would be like in the real world. Plus, any character that powerful would be too much to throw into the player base.