Patch 3.2 mount system changed before, did you still remember it? Here according to blue poster Zarhym, we can know more details on the mount system changes!
Movement Speed Training By Class
Druid
Travel Form: Requires level 16
Flight Form: Requires level 60 (150% flight speed)
Swift Flight Form: Requires level 70
Hunter
Aspect of the Cheetah: Requires level 16
Shaman
Ghost Wolf: Requires level 16
Paladin
Warhorse: Requires level 20
Charger: Requires level 40
Warlock
Felsteed: Requires level 20
Dreadsteed: Requires level 40
Players can receive discounts on expert and artisan flight skills with Honor Hold or Valiance Expedition faction for the Alliance, and Thrallmar or Warsong Offensive faction for the Horde.
Check out your classes now! And here is the changes for mount skill. Blizzard has taken a major decision by changing the original game design direction to benefit fast power-leveling to 80, reducing the amount of time spent walking back and forth to accomplish quests. You will be able to ride mounts at level 20, ride epic mounts at lvl 40 for merely 50 gold (training) and 10 gold (mount). Best of all, at level 60 in Hellfire Peninsula you can seriously reduce the time you complete quests by allowing you to fly at 150%. At this rate, players might be able to reach level 80 in half the time it used to before, if not less.
