I loved both Fargo and Legion, but I have concerns that what I like in those shows might not translate.
First off, the style and story-telling involved in a 13 episode TV series is vastly different than a big-budget feature film. Can Hawley make the leap? Maybe, but it is a risk because he's never done a film before.
There's also a key phrase that McFeely said that I haven't heard in any form from Hawley: "I would do the thing that they never do which is to stick to the comic book". Does Hawley know and like and respect the Doom from the comics or is he simply going to use the name and create a political thriller that has no relation to the character we want to see? Until I hear more from him, I don't know.
And that brings up the final and most important point: If Hawley is working for Marvel, I can't wait. because Marvel has shown they understand the characters and respect the characters and the final film will feature the comic-book character. If they were behind Hawley, I'd know the film would be based on the comic books.
Fox has shown contempt for the comic books and an unwillingness to do the things necessary to pay tribute to the comics. As long as Hawley is working for Fox (or Comcast), I have no faith the final product will be anything close to what I want to see.
Josh Trank showed a lot of talent with Chronicle. And I believe to this day, if Trank had been working for Marvel, they would have given him the guidance and support and surrounding talent (production design, etc) that he could have made a great FF film. But we saw what happened when he was working with Fox.
I have no reason to believe Hawley won't have his talent squandered in a similar way if he's working for Fox (or Comcast).