I guess this is more of a dream instead of an idea because I'm not sure if it could be done/someone would want to do it.
So, I've always liked the bow, but I thought it needed more features. Don't tell me about the Huntsman and stuff like that, because that's not what I want.
First, it would be cool if there was an ammo system on the bow, and the ability to re-pick up the arrows that you've already shot. Plus, hold-to-charge technology and manual reloading. (right-clicking to put in another arrow?) I know I'm asking for too much, but if it were possible to make it so you are only able to use this weapon if you have the quiver avatar thingy on your back.