We need some kind of meaningful open pvp area. Even if it's end-game pvp.
I keep thinking back to how Starfleet Command 2 and SFC3 had such a fun campaign setup. Though it was a hex-based map, you coud team up with 2 buddies and fight enemy NPCs to flip each location. There were even starbase & planet attack situations. Of course, the enemy would always show up once they saw where you were. The 3v3 battles were a blast. Having an unconquerable base area for each side (safe zone) and lots of space in between to claim for your side in some kind of sector block.
I'm hoping to see something similar to this after the Klingons get some PvE content. There's a war going on, ya know.