After Echo's premier, Disney+ added the Marvel Netflix shows to the Marvel Cinematic Universe timeline, confirming that Daredevil, Jessica Jones, Luke Cage, Iron Fist, The Punisher, and The Defenders are canon. This will surely have great implications for the future of the MCU, and it will also open the door for some of Netflix's Marvel characters to appear in future projects.
Source:https://www.cbr.com/mcu-netflix-character-return/