Why Zuko abdicated from the throne? - The Legend of Korra (2012)

Fire Lord Ozai confirmed that he banished Zuko's mother and that she may still be alive, but it is unsure. In the series finale, Fire Lord Zuko questions his father on the whereabouts of his mother, but the series ends before it is confirmed that she was found. Zuko finding Ursa was actually storyboarded for the finale by Avatar Director Joaquim Dos Santos, but was nixed by Mike DiMartino - not really sure why but this implies that Ursa most likely is alive. In 'The Legend of Korra' the children of Tenzin asks their grandmother, Katara, to tell the story about Zuko's mother, although she was willing to tell the full story, she got interrupted before telling the story.

Beric Dondarrion was resurrected by Thoros of Myr. He was killed the first time by the Mountain, and we saw Sandor Clegane kill him in combat. He was resurrected 7 times.

In Season 2

Ed Skrein, who played Daario in season three, was cast as the lead in the new Transporter film, so scheduling conflicts arose. Though in a recent interview, Ed Skrien implied that he wanted to return for the role, but "politics" prevented it. But he wouldn't go into more detail than that. The part has been recast with Dutch actor Michiel Huisman who fans might recognize from the role of Sonny on Treme and Liam on Nashville.

She had a fictional disease called greyscale, somewhat similar to leprosy or smallpox. In children it often leaves survivors with scaly patches of skin. In adults the disease is always fatal and gradually petrifies the victim's body until they die. In rare cases, it doesn't kill them, but mutates them into feral, reptile-like creatures known as "Stone Men". Shireen was stricken with the illness when Stannis had bought a small wooden doll for Shireen that was infected with the illness.