my opinion for how long it took to make the lion king 2 it would have given plenty of time for kopa to grown up and meet another cub and I don't think Kopa is anywhere close to vitani's age because animation clearly states that Kopa is technically the older brother of Kiara not to mention kiara wasn't even born yet or thought of by Disney Mention unlike his father he had hair on top of his head there for kopa is vitan's father and that's how she got her blue eyes because nala is vitani's grandmother but I think zira is her mother I cant really say for Nuka and kovu its hard to say but I can say that Nuka did indeed get pretty mad about zira constantly spending time with kovu and he too also looked like scar not just kovu but at the same time if kovu's mom is zira and Nuka was scars son then they would only be half brothers leaving only one question who is Kovu's father so what happened to this happy couple? no one really knows for sure maybe perhaps kopa found out that she loved scar more and he left her were she later tried to kill him and he ran away for the safety of himself not thinking of vitani what so ever there is a good chance if I'm right that explains why Zazu said nothing more than a bunch of backstabbing murderous outsiders thanks for viewing HAPPY NEW YEAR!!!!!!!!!!