I don't see any real reason to erase the Netflix shows from continuity. Characters who were killed off such as Kilgrave and Jigsaw probably wouldn't have been used in PG-13 material, Nuke in the Netflix series was never actually called Nuke, and his real name was Will Simpson instead of Frank Simpson, so they could easily retcon a new character as Nuke if they really wanted to, Elektra was never confirmed dead after the Defenders series, and antagonists such as Bullseye, Hellcat, Diamondback, Bushmaster, Davos, and Typhoid Mary are still around, some of which could be solid additions to the Thunderbolts (as of the end of Jessica Jones season 3, Hellcat and Diamondback are even at the Raft). I feel like there isn't much point to redoing the setup of Daredevil's rivalry with Fisk, and that it would be more simple to keep their established history as enemies. If Fisk gets to form a new rivalry with anyone in future projects, it should be with Spider-Man.