Players who complete the new Reclaiming Gilneas questline in Dragonflight Patch 10.2.5 will be rewarded with the Reins of the Gilnean Prowler mount as well as the Ensemble: Gilnean Noble's Suit cosmetic transmog!
Both cosmetics are awarded by completing the Beginning a New Dawn quest step of the questline.
The Gilnean Noble Suit transmog comes with nearly everything befitting an aristocrat including top hat, monocle, and rose adornments.
Rest assured, we'll be sure to post a full walkthrough of the new questlines.