So, I found this bug that ca be use to have a teleport Heartstone at any place you want to.
1º Search for a friend from the other faction
2º Your friend should approach an Innkeeper and attack him. Don’t kill him, just take the aggro.
3º Now move around the map while attacking him. Go far away and after that click on the Innkeeper. You’ll be able to set that zone as your teleport area.