Netflix could explore Avatar's four nations if The Last Airbender makes money. Departing from the source material is difficult, yet some characters' stories during and after
June, the nation-less bounty hunter in Avatar: The Last Airbender, may be the most dangerous non-bender. June is neutral; she serves whoever pays the most for her and her shirshu Nyla, a nasty beast with a keen sense of smell.
Her shirshu Nyla is deadly, but June is strong, agile, and a great hand-to-hand fighter, so she can lead action set pieces without pricey CGI. Her past is unknown, but her father, a bounty hunter, taught her fighting and tracking talents.
June might explore the four nations of Avatar in self-contained episodes, seeking a fresh bounty or going on a new adventure. She would meet known characters from The Last Airbender and introduce new ones on her travels.
June was given a larger role in season 1 of Netflix's live-action Avatar: The Last Airbender than her animation counterpart since Zuko ordered her to capture Aang.
The one-on-one scene with Aang gave her much-needed character understanding and displayed Arden Cho's caustic humour. Following Avatar: The Last Airbender, a Mandalorian-style Western starring June makes sense.