Probably not. The Warlands stuff is Time Rifts content.
Wowhead is getting people mixed up. The Time Rifts are all the wacky alternate universe stuff like Warlands, Azmerloth, while the mega-dungeon is mostly just centered around the Infinite Dragonflight with very little alternate universe hijianks, so anything that seems silly/goofy is probably a Time Rift reward. For instance, the mounts like the Fel Storm Dragon mention coming from alternate timelines and so those probably come from Time Rifts.
If you just meant it is coming in 10.1.5, sure.