I agree that PvP should still be a large aspect. However instancing doesn't change that at all. An example of PvP still occurring regardless of the instancing is the RI. People get ganked at the RI very often. The instancing just gives the ability to have more mats for more players. The problem is there is just simply not enough for everyone if fighting starts to occur more often on other continents.When Loka is trying to encourage more world PvP I kinda worry that instancing is slowly removing a lot of competition and turning grinding into more and more of a time sink with a lot less strategy and you're not ever as worried about being snuck up on as before the instancing.
I feel there should be a balance between stuff that's instanced and stuff that everyone can fight over. Just so you can always go into the nether expecting to bring something back but at the same time, it encourages players to get in quick and grab things before an alliance just sweeps all the shrines etc.