Broken Isles Pathfinder, Part One

#1 - Dec. 12, 2016, 8 p.m.
Blizzard Post
I just got this completed last night. What does Part two involve?
#26 - Dec. 13, 2016, 9:45 p.m.
Blizzard Post
12/12/2016 12:15 PMPosted by Derkhammer
Finish Part one, fully explore the Broken Shore, complete the Broken Shore campaign, complete the new Class Order campaign, get up your rep with the new Legionfall faction.

You get a new class-specific mount and you can fly.
This is accurate. We talked about this at BlizzCon this year.

You can find some information on the "Part Two" achievement and the class-specific mounts on Wowhead here.