1. Need to have some sort of punishment for leaving Warzones early. I've seen many times where 3-5 people have left a warzone simply because they weren't completely dominating the other team. That takes a possible win and makes it a guaranteed loss at that point.
2. Resolve bar. Either make it work properly, or get rid of it entirely.
3. Level brackets. I've seen a lot of complaining on the forums about level brackets as a whole. Personally I think 50's need to have their own bracket apart from everyone else. The amount of expertise you can have at 50 is ridiculous compared to 10, 20, 30 and even 40. I understand that giving 50's their own brackets at launch would have been a terrible idea, but by next week it's time to seriously consider implementing it.
Now this isn't a qq post. These are simply things I've observed in warzones over the last week.