I agree with you. Having more styles of wings would benefit the avid roleplayers of the game, however there's no way to add wings that you can use to fly without replacing an already-existing wing model because the game's creator did not hand the source code over to the staff. No source code means no more added playable models, animations, etc. (There's a wing mod that does replace an already existing model, and that can be found here (http://xruby1234x.deviantart.com/art/UPDATED-3-30-13-NEW-FERALHEART-WINGS-2-WIP-MOD-362242359).) However, there's already downloadable wings that you can wear in-game. They can be found in this (http://thabiue.deviantart.com/art/Pawesome-Items-Pack-V5-6-3-14-Download-377205907) item pack.
Also, I think this belongs in game ideas and opinions (http://www.feral-heart.com/index.php?option=com_jfusion&Itemid=2&jfile=index.php&board=29.0). :)