Yes disable it from regular world. BUT what about cities/factions that have "beefs" with each other. How could they stop them from entering their city?
Actually I dunno if it should be taken away completely anymore. Having a warworld chat and a regular world chat would definitely hinder the cross border disputes, and would keep fighting in war world.
It would be weird not having that little bit of pvp inside of regular world, just some how needs to be back to what it was before lol