TLK2 characters WILL be included!
The show will follow Kion, the second-born son of Simba and Nala.
(...)
Mufasa, Timon, Pumbaa, Rafiki, Zazu and Kion’s older sister Kiara will all make appearances, but the show will focus on the creatures of the Lion Guard, a series of new characters including a honey badger, a cheetah, a hippo, and an egret.
Source: http://insidetv.ew.com/2014/06/10/di...off-lion-guard