Drop a point on the edge of the land. Ambiguously label it "Port." "Is it just where Port is camping? Does he live there? Is it just a boat port?" Kinda silly idea. Just came to me as I imagined bad add-ons shipped out to those islands from the add-on factory by boat.
Maybe put some indication of the long road leading up to the ice palace? MotE manor could be on there. Maybe in the east or west areas.
Speedkart tracks - on those little islands between new and old Blockland.
Maybe label that unused fail bin island the v8 archive. Maybe change the shape of one of them too, rounding everything looks dull.
How about dropping Age of Time, Two Guns, and Perennial into the Off Topic section?