Hang Gliders will only be able to use when there is a wind stream so no use in old maps and stuff, they will make windstreams to use them like in Aion, these where only certain areas where you could flight in all the other maps you could only glyde to. but they will add windstreams of hot air to go up high again and start gliding trough to areas you need to discover like PoI or vistas even story mode, you need to put more xp in hang gliding to have the condition to hang glide further, example: lvl 1 hang glide 10 meters far, lvl 2 50 meters. this will be the same system als they use for WvW xp to put in XP in special abbilities. this is how i think about the hang gliding! also i hope to dye them