Two new Dragonriding traits await in Patch 10.0.7 that focus on Vigor regeneration. You can learn them upon collecting the 8 new Dragon Glyphs in Zaralek Cavern.
Whilst dragonriding near the ground, you will regenerate Vigor with the new traits.
Ground Skimming – When dragonriding near the ground, you regenerate 1 Vigor every 30 sec. This effect does not occur while affected by Thrill of the Skies. Costs 4 Dragon Glyphs.
Land’s Blessing – Ground Skimming regenerates 1 Vigor every 20 seconds. Costs 4 Dragon Glyphs.
The 10.1 Dragonriding traits are on row 5 and 6 on in the class tree.