I dont know the logistics of this is even a remote possibility but if there was a way, they should have one server that all Console goes to for PvP (IC and Cyrodiil)
So basically if anyone playing on PSNA, PSEU, XBNA, XBEU queues for IC or Cyrodiil, they all go into one server to play against each other
The amount of users that visit these areas are small enough (no real stats and guessing since I rarely see more than a handful of players on at any given time) that even if users from all 4 current servers joined in these 2 PvP areas, it still may not hit max capacity in all campaigns BUT there would be more players in each campaign to make it a real 3 alliance war. Could even change the amount of campaigns.
I would assume it would take a new server dedicated just to PvP. It would give more population and maybe even give a challenge to those who normally play on a daily basis.
Being on it's own server might even help with lag, make Mayhem smoother and might be easier to make adjustments/enhancements/updates?
BTW - this is not about combining all 4 servers for everything. Just for PvP.