Gooey Slimesaber Mount Hinted in Patch 9.2.5 Datamining

wowhead.com:

Datamining hints at the Gooey Slimesaber mount coming in Patch 9.2.5, one of the unused concepts for the free Shadowlands mount. The first Patch 9.2.5 PTR build has added an icon that looks like a slime cat, as well as a skin: This would not be the first time one of the unused free Shadowlands mounts made its way into the game--previously we saw the Soaring Spelltome added to the game as a reward from the Mage Tower. Do you think all of the other mounts will be added to the game at some point?

Our artists have kicked things off by coming up with concepts for five unique mounts for you to choose between. Now it’s time for your part—pick your favorite from the poll linked above and below; the highest number of votes internationally will be crowned the winning choice and our artists will begin working on making your choice a reality.

Wandering Ancient – Not all ancients are interested in war or lore, some just want to travel the world! A large and leafy mount, the Wandering Ancient invites you to climb aboard and grab ahold of its branches as you embark on a lumbering expedition.

Soaring Spelltome – In the forgotten depths of the Dalaran library, this oversized tome was found flapping madly around the room. Open the pages of this arcane-infused book and hitch a ride to magical adventure.

Nerubian Swarmer – When the Helm of Domination shattered, the Nerubians under the control of the Lich King were unleashed. Some were captured by the Argent Crusade and turned by their allies in the Ebon Blade. Now their spidery claws are put to use as mounts, skittering through the frozen tundra of Icecrown in pursuit of the rampaging undead.

Curious Caterpillar – A curious caterpillar found its way to the