Unhappy wannabe DPS tanks switched to DPS jobs. DPS people who can't stand the long queues switched to tank. So it breaks about even. Outside of this, the longer than normal queues will subside after a couple of weeks from now. Keep in mind though that a typical dps df wait time has always been around 20-ish minutes, give or take. With two new dps jobs added, this ain't improving any time soon.