Take a gryphon to Honor Point and speak with Field Marshal Brock.
Well, [player], I hope you're prepared for the next phase of our operation. The Legion never rests - and neither shall we! Take a gryphon and fly over to Honor Point - it's a small post near the Legion Front.
Speak with Field Marshal Brock. He'll have instructions for you when you arrive. Oh, and tell that pasty-faced shield-kisser I said 'hello'.