I'm pretty sure A-net has said this before, but PvP balancing is one of the last things that are going to occur to the game, its defiantly not on the minds as of the moment. I doubt any of the abilities we think are OP (Thief's Unload) or classes that might be crazy (Necro anyone?), plus if they had skills change in Guild Wars 1 to PvP versions of themselves why not do the same for Guild Wars 2 if not just for the sake of balancing the PvP so it isn't a zerg fest 24/7 in WvWvW
I do not post this to insult you. But, I would strongly disagree with you. Maybe in the development stage of GWs2 right now, this is not on the forefront. If we are going off of Anet's track record for skill balancing; I would say PvP is why 75-90% of the reason skills get changed/nerfed. I can count dozens if not hundred of skill (if I cared to research) that were changed because of the current metagame/ overpowered. Few examples: Aegis, Gale, Burst of Aggression, Iway just to name a few.
Anet will change skills people do not use often, and make them more powerful so people will use them. And after everyone in PvP uses them, they nerf them a little to make them balanced. Ex: All of the Conjures, Primal Rage, WoH, SoD, SoR
There has been PvE changes: Biggest one that comes to mind is the early 55 days. But, they more changed the whole AI instead of a lot of skills. I believe they changed Protective bond.
I am not trying to act all high and mighty. I am sure many, many people know more then I do. I have not played much in the last 4 years. When I did play I did not do a lot of PvE.
Like I said, not to insult you, but Anet takes PvP skill balancing very serious... And that is why I come to love Guild Wars PvP! The best PvP I have ever played!! -Labatts