I was really hoping it was neither Moogles nor Goblins.

Both already have a lot of lore/limelight. Moogles have a whole zone of quests and relevant main-story quests/significance dedicated to them (and many players obviously disliked the nature of their quests), as do Goblins with Idyllshire and the Hinterlands and by extension, Alexander.

Then again, it's fairly clear that there's really not much beastmen left to choose from to make a "tribe" for daily quests. I know they (the developers) will be all too happy to stick a couple more moogle or goblin NPCs in the Churning Mists and Hinterlands, respectively, with daily quest markers and shops to cut back on development resources.

Seeing that picture of the dandelion mount though seems to pretty much confirm Moogles next, all things considered.