Easter Eggs and Hidden Details in World of Warcraft: Mists of Pandaria.
Jade Forest
Up
There is a house with balloons attached to it and a panda named Karl inside it. It's a reference to the movie Up.
Kher Shan
Is a reference to Jungle Book's tiger character Shere Khan.
Kun-Lai Summit
Grohl Grohl
There is a small cave in the coast line on top of the Kun-Lai Summit with a hozen monkey playing drums. It's a reference to Dave Grohl who played at the 2010 Blizzcon.
Lon'li Guju
There is a flying turtle along side the coast on top of the zone. He will follow you for a short time if you emote with /wave /love /hug. It's a reference to Lonesome George, a turtle died in 2012 (Pandaria Release Date) and was last of his kind Pinta Island tortoise.
Townlong Steppes
Adele Rolling in the Deep
A female pandaren named Adele is rolling in the deep area of the zone. It's a reference to the singer Adele and her song Rolling in the Deep.
The Wandering Isle
This zone is only accessible to Pandaren race before leaving it forever.
Makael Bay
A Goblin engineer in Wreck of The Skyseeker is a reference to the American film director called Michael Bay.