Again, you need to be able to reap the benefits of your gains while not defending, so it'ld need to be timed I guess, which makes it into a Wintercra ... I mean Wintergrasp variation.Also World PvP/PvE could also become something like DotA / HoN where X amount of soldiers spawn and assault the other base, when you capture it, you start to raid the next base until you reach the capital. Later if you control a area next to the enemy's faction city, there can be a event to assault the capital (everyone in the capital will then be flagged for PvP ) . . .
What are your thoughts on this?
As people will want to do the zone on their own time, yet at the same time not feel obligated to 'guard' the PvP objectives so others can get benefits out of it, there is only one option:
A base assault with NPCs in constant conflict that always levels out over say 12 or 24h from either most extreme side, where you can help PvP in the base to move the slider back to your side faster (but capped at e.g. 3h from max control to 50/50), so you can do it at your own pace, you can reap the benefits depending on how much you farm the PvP objectives and the NPCs can help out balance imbalanced servers. (Maybe counter each player from the other faction with another NPC?)