Im not sure most players even remember they still exist. I do run them, mostly to test how my hero does against Arachnos or my vigilante can beat up some dirty hero corp. The rewards are about the same as regular missions as far as I can tell, so why not run them occasionally? Anyway thats my perspective.
Anyway my suggestion is:
Implement a few instanced missions in Recluse's Victory, that those players who made an instant lvl 50 PvP zone only character could access, as well as any normal player, like myself, who enjoys the thrill of entering a PvP zone, just to race to a door while invisible, could enjoy. My thought being it would be a good area to test your PvP only build since I do not believe they can access an AE anywhere. And it would give me, a non PvPer a reason to enter Recluse's Victory and poke fun at Castle.