I think we're well overdue a non-DF instance, where people can go practice, duel, team zerg, or just have fun. I know the playerbase in general would throw their rattles out if XIV went openworld, but I'd love to see a couple of areas the size of say, Coerth West, where we could just zone in and PvP for giggles. Perhaps a few Wolf marks for the first few kills on each opponent as a reward, (capped per day, to stop farming/trading) but I think most PvP-minded people would go there just to have something PvP-orientated to do while waiting for the Duty Finder to kick over. Let's face it, off-peak, that wait can be insane.

My fondest memories of MMO PvP was playing parameter defence for our Igg forts in Aion. Now Aion really struggled, due to the lower GCD and the shoddy engine, but to have an area even vaguely similar in this would make my day. Zone in with some friends, go on the prowl, cap a few temporary forts, or something. Prattle about and see how much mess we can get ourselves into and out of.