With the major changes coming to leveling characters from 10-50 in Shadowlands, we want to make sure that there is a navigational parity among all of the different expansions you can choose while questing. In the next version of the Shadowlands Alpha that will appear this week, testers are going to see an intentional change coming to Shadowlands for a couple of older Pathfinder achievements.
Specifically, the flight training rewards from Draenor Pathfinder and Broken Isles Pathfinder, Part Two will no longer be required for flying in Draenor or Broken Isles content. These will now be granted at level 30 with expert flying.
The achievements will remain in place as before, and Draenor Pathfinder will still be the way to earn the Soaring Skyterror mount, while Broken Isles Pathfinder, Part One will continue to reward increased mount speed in the Broken Isles.