UPDATE: Marvel has made it official as well.
“Scott came in with a take on Iron Fist that quite simply knocked us off our feet. We always look for the most creative minds in the field to help us bring our heroes to life, and with Scott we’ve found someone that can deliver yet another great series in the ongoing story of The Defenders,” said Executive Producer/Head of Marvel Television, Jeph Loeb to Deadline.
“I’ve always been drawn to writing complex, intriguing characters, and that’s what most excites me about the opportunity to bring Danny Rand and “Iron Fist” to life with Marvel on Netflix,” said Buck to Deadline.
The official Iron Fist synopsis:
“Returning to New York City after being missing for years, Daniel Rand fights against the criminal element corrupting New York City with his incredible kung-fu mastery and ability to summon the awesome power of the fiery Iron Fist.”
Luke Cage and Daredevil season two are in production with both series debuting in 2016. The earliest Iron Fist will air is 2017, with a Defenders series to follow.