As I still hope for some Wolves Den revival I also hope for large scale battles without GC restrictions too and some type of small castle siege battleground.
Also some 1 v 1 like Olympiads in Lineage II would be epic, the classes were not balanced in Lineage II and it still was doable.

I know it is not going to happen thought. That is why i still have to play atleast one more pvp MMO all the time as my sidegame to the FFXIV.