Originally Posted by DigificWriter
The Blade property's Vampire theme gives it a broader appeal when it comes to general audiences because, as I noted, vampires are and have always been popular. With Black Panther and Luke Cage, you have to work harder to maximize their appeal when it comes to attracting a general audience whereas, with Blade, you've already got built-in crowd appeal because of the vampire theme.
This is true if Blade were made as any other film dealing with vampires but it's not. It would be a part of Marvel's MCU which is at the moment a family oriented target market. Blade would mostly certainly not appeal to Marvel's target audience more than Black Panther or Luke Cage.
And for the record Marvel wouldn't be looking to market Luke Cage by himself. If/When they bring him out it will be in tandem with Iron Fist