http://tamrielfoundry.com/2012/10/interview-brian-wheeler/
TF: You mentioned spending alliance points on perks or items. Is this the alternative advancement system for PvP? Can you say anything about that yet?
BW: Yeah, there is an AA system for PvP, we call them “alliance points”. You accumulate a lifetime alliance point tally. There are ranks, we are looking at about 23 ranks at launch. Each rank gets you a new title and a new icon for your character. We are working on different ways to spend your alliance points, but the system is still in progress.
I highlighted this part because it was something I was discussing when it came to progression in PvP. Not just armor, but player progression. The incentive to make your character better, and not just the trinkets you earn. It really excites me to know that there is going to be a ranking system!
Edit : It also answers things like how you will look when stealthed to other players, bottle necks, and heraldry.