I've seen it in the 400 player area a few times in recent weeks. I for one can't wait for the return to the 5 to 600 player nights, like back on the old Titanic Tuesday. So many of the issues and problems many have complained about seem to vanish when there is a crowd to fight, just my opinion on that. I do know it's a blast having a huge arena crowed, big time.
I'm certain that the new version, come what may, will bring in those numbers, at first from mostly returning members who will want to see what the fuss is all about, or from word of mouth, and then, hopefully, a swath of new members (I personally hope HTC has a plan to steal them from War Blunder, and it's my honest hope they will figure out a way to keep them). Remember that the whole "arena split" days of orange and blue (I began to hate those colors) wasn't all that long ago - I would bet they'll be back in force when that "download beta" button appears.