I’m a bit worried about this movie for a number of reasons. Actually, worried is the wrong word. I’m far too jaded about Star Wars to worry about anything these days.
For one, I get the feeling that this film will totally ruin Han’s arc in ANH. He goes from “cynical smuggler who cares only about himself” to “rogue who sacrifices his own interests to save his friends” in the course of the film. That’s his character. If they try and make Han out to be a good guy in the standalone movie (which they will; this is Disney we’re talking about here) it will spoil his character progression. This will make his whole subplot in ANH completely pointless.
This is why I’ve said that a movie about Lando would be much better. Lando seems to have gone through the life changes we see Han make during the OT before we meet him. There’s a much better backstory to tell with Lando and, obviously, Han could still be there.