I read somewhere don't recall where. Blizzcon 2007 sort of rings a bell but i can't be quite sure where Blizzard talked about it. Just so it doesn't seem like I'm making this up Wow insider touched on this as well.
http://www.wowinsider.com/2007/12/15/taunting-in-pvp/
As for what they want to do with it i remember reading Knockdown or pull ins like what the DK has Death grip. I think i even watched a video where Tigole mentioned debuffing the target for x amount of second or something like that but don't quote me on it.
As for the "charge" did you mean something like the Warrior's Heroic leap
http://youtube.com/watch?v=9-xecrUy5Ic&feature=related
Would seem like a Ret thing if they did that however imo they should just let warriors have it. We got Healing let them have their Charges/Intercepts and their new Leap.