Season two of Jessica Jones is currently shooting and Luke Cage starts filming a little later this year, a surefire sign that both shows are being lined up to premiere in 2018. However, Entertainment Weekly has compiled a list of every show currently in production over at Marvel and they count a third season of Daredevil among them. The site even goes on to claim that it will hit the streaming service next year.
Now, this obviously hasn't been confirmed by Marvel or Netflix but the site is reliable and it makes sense that The Man Without Fear will get a third season as the second was first streamed in early 2016.
There's no word on Iron Fist but you have to believe it will return (probably with a new showrunner).
In the meantime, there's a lot to keep us going, including The Defenders on August 18th and The Punisher shortly after. Just like Marvel Studios had to increase their output from two movies a year, Netflix now releasing three Marvel TV shows makes a whole lot of sense and is exciting news for fans!