Umm...
Uhh...
What were they thinking?!?!
So far as I'm concerned, they lost their way the instant they decided to include elements of the supernatural in the movie.
Yes, Marvel comics continuity has more magic in it than a great wyrm's treasure hoard. But this isn't a comic book; it's a movie that's supposed to be in the same continuity as Daredevil. And Daredevil, like most superhero movies, doesn't take place in the Marvel Universe. It takes place in the real world with a few unusual people. It would have felt absolutely wrong to have magic in Daredevil (or the Punisher, or even X-Men), and it feels wrong here.
If Elektra hadn't appeared in the DD movie, it might be different. But as things stand, this is not a workable idea, IMO.