Currently, kafra teleporter only lets you warp to these towns by clearing the old Onward to the New World, New Surrounding, and Attitude to the New World quests. Whereas, after episode 13.3, we have the new Cat Hand New World Access quest, which can be used to substitute those quests. Even those guards at the east and west side of expedition camp let you pass if you cleared cat hand access, eventhough you haven't cleared onward and other quests.
So, could you make so that people can warp to those town if they've cleared onward, attitude, new surrounding, OR cat hand quest?
reference:
http://irowiki.org/wiki/Quests