Вот уже и новости потянулись с:
В финальных сериях Стрелы появится Нисса в исполнении Катрины Лоу. Линия её персонажа будет связана с Талией аль Гул.

- EW has learned exclusively that Katrina Law will reprise her role as Nyssa al Ghul for multiple episodes that culminate in an epic fight between Nyssa and her half-sister Talia al Ghul (Lexa Doig) in the upcoming season 5 finale.
Ever since Talia’s introduction, the eventuality of an epic showdown between the pair has been highly anticipated. “They’re close enough and different enough that I would love, at some point, to do a story with Nyssa and Talia,” executive producer Marc Guggenheim previously told EW.