Examiner.com writes:

"It was discovered on the PTR before Blizzard confirmed it, but it’s there anyway: players will be able to learn Cold Weather Flying at level 68 in World of Warcraft.

More specifically, players can buy a heirloom item with a current level 80, and pass it on to an alt, allowing that alt to learn Cold Weather Flying at 68 instead of having to wait until 77."
. Read the rest at gamesradar.com.