And I think Marvel isn't just making a Captain Marvel movie only cause they have to do a superhero film with a female lead. If that was the case they could have gone with a established character like Black Widow instead.
Carol Danvers as Captain Marvel is one of the most powerful characters in the Marvel universe and there is so much potential for some unique stories and visual possibilities. And she has gotten such a rapid fan following especially among the female readers in the last couple of years after the relaunch. So this is another example of Marvel choosing the character cause of her significance and for the fans.
As for casting I wouldn't mind Katee Sackhoff or Yvonne Strahovski. And I haven't seen Vikings yet, but after seeing pics of Katheryn Winnick in some of the recent articles she seemed like a good choice too.
Very much looking forward to see how they adapt her awesome comic costume for the movie. I hope they also retain that distinct hairstyle when she is in costume along with the add-on red helmet.