
Fans speculate that the lioness (off to the left) that tells Kiara "My, how you've grown!" is Sarabi while others claim it is Sarafina. In fact, an archived LK website credits Zoe Leader as voicing Sarafina as being in
Simba's Pride. (
source) My personal take on it is it the lioness share Sarabi's eye color and have similar pelt fur, but while she's certainly built like her, the lioness lacks ear rims, and her paws are uncolored whereas Sarabi's paws are colored.
Here's a screengrab to compare by:

If you want to hear something that's more farfetched, Sarabi (or should I say Serabi) was banished by Simba along with Zira and the Outsiders:
[quote="
Disney.go.com"]After Simba banished Zira, Scar’s sister-in-law Serabi and Scar’s other followers to the Outlands at the end of The Lion King, Zira dedicated herself to training Kovu for his historic role. In order to walk in Scar’s paw prints, he would need to defeat Simba and take over the animal kingdom.[/quote]