This will be kept somewhat under the table to avoid the inevitable zerg that a few people would try. It's looking like we will have 4 Alliance and 4 Horde 5mans set up for this. I'll get all the rosters together and try and get a good time together to where all 40 people could make it. Once a time is decided, we'd head over to a contested zone and roam.
5v5, don't jump into a fight in process, no engineering trinkets (mc hats/rocket helm - nades are a-ok), pots are free game.
That's 5man night in a nutshell. If you are interested, get a roster of 5-7 people so I can start getting a good day/time for the teams involved. Either reply here or find me on irc.