Theory Time and could possibly hint to spoilers Could this lead to the possible origins or link to the lioness Zira has member, linked or descendants of the pride of Outsider, and maybe Kiros the leader/ruler of the Outsiders he's father and explain why we do not see her in Mufasa pride (outside that plot device or scenario) and show the tragedy of Taka even more because the more and more Mufasa robbed he's destiny the more Taka leaning and agree with Kiros ideology and ambition becoming like him, like some sort of diesis or curse, think if you Know Vinland saga the Crown curse of Knut slowly and slowly becoming ruthless, tyrant, malecious, cold and calculating like his father Sweyn, becoming an Outsider himself, maybe in the Shadows he lear in secret talking with the remain of Outsider Kiros pride to how he would dismissed Mufasa has the rightfull King and heir with the help of the hyena long last rival and ennemies of lion, they see in him a good succesor to Kiros (heck even his brighter coat match well with the leusistic and greyish coat of the outsider) and this is how he gain the heart of Zira and have Vitani and Nuka, heck if Zira is just the lioness of the outsider with no family affiliation maybe Kovu is the son of Kiros (in the live action) and this is why he was chose by Scar/Taka and Zira has the rightfull heir and succesor to the throne of Prideland, it would be interesting and better way to show the downfall of scar than the Snake/cobra venom in the Lion Guard show.