When Daredevil Season 1 kicked off in the aftermath of Avengers Assemble, continuity with the MCU was tight. Then it became not so tight. By the time Infinity War hit cinemas, the Netflix Marvel saga had severed virtually all of its narrative ties with the movies, which was a bit of a frustrating deviation for fan service-thirsty audiences
On the plus side, it had become serviceable canon in its own right. There were six separate shows which tended to intertwine, and a seismic wedge of the Marvel comic stomping ground had been amply represented.
Ultimately, a great opportunity has been missed. It's a shame that these essential Marvel characters may now never enter the MCU fray. It would be even more of a shame if the actors playing them were simply replaced, with the characters rebooted in a whitewash of everything Netflix achieved.
When all weighed up together, there's a hell of a lot of great Marvel substance going down the pan. Though chances are next to nothing, the MCU should still at least consider retaining the following cast and the great characters they played.