When patch comes out there is chance to fall under textures due bugged arrival point coordineates. Currently insta-teleport out of combat potion of deepholm may save yer day. Will be good to see more items like this in future. Also remember use flying mount before teleportation device if it allows mounted cast. Which will help to not drop end gettin dc’ed.
If your character is stuck you can hearth, if your hearthstone is on cooldown or you are stuck in a d/c loop you can use the self service option to get your character moved somewhere safe.