[quote="TheIvanMuse"]Actually Sarabi and Sarafina should be there,but they weren't actually shown much. Except for that ''My how you've grown line.'' Sarafina says to Kiara.[/quote]
It's not Sarafina.. Sarafina would be too old at that point to be alive, and that lioness looks nothing like her.. Her name doesn't appear in the credits either.
[quote]I don't think Nala's entirely useless--it'd be kinda weird not to have her there, seeing as she's Simba's mate, the queen, and also Kiara's mother.[/quote]
That's the point, she's just the "love interest" of the main character and Kiara's mother. Nothing else..
Disney just added her because they ALWAYS want to put some horrible romance one way or another in their movies.