User blog comment:Kogath/Monster Hunter: World Discussion/@comment-25083735-20190726141837/@comment-24734669-20190726144228

It was literally revealed that Kestodon would be the Tailraider mount for the Wildspire Waste in the same TV spot that showed off the Rathalos vs. Tigrex turf war.

It’s likely that Gastodon would be it for the Elder’s Recess as well.