The good people over at Guild Wars 2 PvP just started publishing an interview series about PvP with ANet developers.
Part 1 Jon Peters, Systems Designer
Part 2 John Corpening, Programmer
Part 3 Isaiah Cartwright, Lead Systems Designer
Part 4 Tirzah Bauer, Environmental Artist
Part 5 Jonathan Sharp, Game Designer
I will update this OP as the other parts go live.