The connection to Daredevil is similar to the first 8 episodes of Agents of Shield, perhaps less connected. As for 2018, they are not connected. It is a settled debate by the movies and tv production teams
http://www.denofgeek.com/uk/tv/the-d...ers-in-the-mcu =http://www.denofgeek.com/uk/tv/the-defenders/54474/marvel-why-well-never-see-the-defenders-in-the-mcu
https://www.cinemablend.com/news/164...ble-future=Why Marvel Movies And TV Shows Won't Crossover In The Foreseeable Future
Marvel Netflix has chosen to ignore the effect left from Infinity War.
https://screenrant.com/luke-cage-sea...nity-war/=Luke Cage Season 2 Entirely Ignores Avengers: Infinity War
The have the same connection as Patrick Stewart's is the father of Legion on FX.
Daredevil is never going to be in MCU movies, neither is Luke Cage or Jessica Jones.
The big bosses uses to say they are connected to get people to watch. it's free advertising that's all. The creative teams are not involved with eachother.