These are deleted scenes from Simba's Pride. They were sketched, dubbed and roughly animated, but deleted from final production either because of script changes, lack of time or because they seemed "inapprotiate" for children.
The scene would most likely take place after Kiara's presentation. Rafiki draws a picture of Kiara when he learns that there is another cub in the Outlands.
Kovu and a bug
In ths scene Kovu plays hunting in the Outlands. He catches a bug, but released it, and it made Zira angry. She scolds him for being weak and reminds him about his destiny to become Scar's heir and take over the Pridelands.
Vitani and Nuka's news
This scene takes place right after Kovu and the bug scene. Vitani and Nuka rush to their mother to tell her the exciting news - Simba has a girl cub. After that Zira talks Scar once again.
Nuka's last words
Nuka's last words before he dies. This scene was cut from the movie probably because of kids getting a bad impression abut suicide being the only way of getting their parents' attention.
A final deleted scene where Zira inentionaly falls in the water after a lost battle. It was obviously deleted because it could be too scary for the kids. Even though the suicide was deleted from the final movie, you can still see Zira zmiling as she falls.