I managed to get the 150 mounts achievement and went to see the reward for the 200 mount achievement, and saw it was this:
The reason I bring it up is because the colors on it look really neat and kinda something that a San’layn could use:
Bat mounts make a bit more sense for San’layn, but seeing as they were former Blood Elves, I wondered if some of the dragonhawks they rode on also got converted into a dark undead version. Maybe the San’layn would have a few of these types of dragonhawks along with some bat mounts.
If you want this mount, you’ll need to collect 200 mounts:
Just something I found and wanted to share. If we get playable San’layn, it could possibly go well with their theme in some ways. 