For those who do not know, the Heroes For Hire are a superhero team led by Luke Cage and Iron Fist, while the Daughters of the Dragon is another name for the team-up between Colleen Wing and Misty Knight.
A Heroes For Hire spinoff, while fun, is less likely.
All four of these key players will exist in the Netflix universe once Iron Fist joins the fray, with Luke Cage (Mike Colter) and Misty Knight (Simone Missick) appearing as the two lead characters in Luke Cage.
Luke Cage and Iron Fist will already be teaming up in the Defenders series, which would make a duo team-up rather redundant.