Well, not really much of a topic itself, but I thought I might as well make it as I'm curious. I've already made a thread about Kiara, Kovu & Vitani, but Nuka got a bit left out. So now we'll have one about him.
How does Nuka fit in?
Is he Scar's son, or not? If he is Scar's son, why isn't he the "chosen one"? Why isn't he Scar's heir?
If he's not Scar's son, what made Zira (or Scar, if you believe Zira wasn't just a crazy fangirl and that Scar really chose Kovu himself) choose Kovu to follow in Scar's pawprints instead of Nuka? As a baby it wouldn't have been known if he'd be smarter or more powerful than Nuka in anyway.
What are your theories about poor old Nuka and his meager role in his mother's plan and in the film?