A big no to Plaza1 going unsafe. Unless you want me to Kami Drone everyone with my red SL...

As far as zoneline PVP goes, I'm afraid we're never getting rid of that. Used to br MB, then P2, then OZ, then P2 again. The game simply needs a spot for zoneline PVP.

As far load goes, I dont think zoning is a major technical issue. Especially since this game originated in an era where 100mbps was the LAN norm, and T1 was a high-performance internet link. With our current bandwidth availability, unless we talk about DB load, i dont think this pose a problem at all.