I've played the beta for quite a while. The lag issue is something that they knew would happen and they were testing it..which was what the stress test was all about.
Then, from Monday to Today there has been zero lag as I've played. None, nada...anyone that says there is major lag is just spreading FUD for some strange unknown reason.
This game is ready to ship, nuff said. The stuff like battlegrounds and honor system etc will come later. Give it a chance. Anyone that's ever played a MMORPG knows it's never truely "finished" in terms of development.