Alliance and Horde working together behind the scenes to have organized RP-PvP. A heated situation Southshore, perhaps? A burning hatred over the factions between two guilds?! - Then you get in contact OOC and organize the PvP. There are some rules, ofc. Like you only fight in RP armour and no spells, or something.
I'd be up for it, and for what it's worth, with me Clan Bladewind.
Heavy is the head that wears the crown. ph'nglui mglw'nafh cthulhu r'lyeh wgah'nagl fhtagn