I don't really headcanon her as anyone, but it's cool Sarafina's voice actor got involved in the sequel anyhow. ^^

The lioness doesn't look like ether Sarabi or Sarafina. By known it has brown eyes and no black ear rings. She's most likely a random lioness like the others.

Sadly!!! Because DAMN I just wish both Sarabi and Sarafina appeared in the 2nd movie it feels wrong for me in so many ways that they don't appear.

According to every wiki and anything else I can find the only important lion characters who were also in the first movie are; Simba and Nala.

Sarabi had too few scenes in the first movie :(

She doesn’t look like sarabi or sarafina!

I think she was a random lioness.