A lot of these things are already in game, and the others have been talked about before. I don't think you were paying attention. Anyways. Wings and items have been denied constantly by KovuLKD. He refuses to have them. As for the dens, you can already make dens however you want. You can make entire MAPS, and invite friends. The mud idea is new, but the 'Wet mode' idea has been talked about in a few other threads I've seen.