In the next major content patch, we intend to adjust mount requirements to further improve the leveling experience in World of Warcraft. In addition, cast times for summoning all mounts will be reduced to 1.5 seconds, down from 3 seconds. The following is a breakdown of the upcoming cost and level requirement changes we are making for each riding skill.

* Apprentice Riding (Skill 75)

o 60% land mount speed
o Requires level 20
o Cost: 4 gold
o Mount cost: 1 gold
o Mail will be sent to players at level 20 guiding them to the riding trainer

* Journeyman Riding (Skill 150)

o 100% land mount speed
o Requires level 40
o Cost: 50 gold
o Mount cost: 10 gold
o Mail will be sent to players at level 40 guiding them back to the riding trainer 

Read the full WOW announcement here.