While I'd enjoy the whole "pure" thing to be adapted. Part of me wants a political thriller season based partially on Elektra Assassin. Maybe not with the Hand but with elements from it or SHIELD but you could probably mix in some Roxxon stuff instead of them. Probably won't ever happen but a guy can dream.
I'd want her as an antagonist, who maybe doesn't fully reform/revert. Could end in a way that lets them do an adaptation of Elektra Assassin, as she hunts down the Beast.
I assume the threat level with all of spoilers:end of spoilers
The Hand ninjas and whatever else they have planned with that deep hole of theirs... Matt won't kill her if she's leading them and instead try and get her back/out of The Hand but realize the threat is too big and needs to do whatever it takes to save their city/section of NYC.
Anyone here ever hear that bit where Mark Millar originally wanted Wolverine: Enemy of the State to be an Elektra story instead of a Wolverine one? Personally, I'd like to see a Netflix Elektra series follow this idea, myself (even if they do make the Gorgon a gd inhuman instead of a mutant like he was in the comic).