Is the Star Wars universe big enough to do what Marvel does?
It will be interesting to see.
I for one, would not be dying to watch a movie on Boba Fett. I'd watch it, that's for sure, but it doesn't sound great.
Star Wars has always been about big things happening, like the entire Empire battling the rebels, and the confrontations between the most powerful people in the galaxy.
To focus on Boba Fett seems much smaller in scale. They'd need to hit a home run with the cast and with the storyline, or else it could be kind of boring.
Here are 3 stand-alone movies that would sell a TON:
1. Vader -- A movie that goes between Episodes 3 and 4 and shows Vader at his peak. Would be a bit dark, but probably needs to be made.
2. Yoda -- A prequel type of movie that happens possibly a hundred years before Episode 1 with a younger Yoda taking the lead on a big galactic event.
3. Solo/Lando movie. Unfortunately I don't know if this could happen in a way that would satisfy fans. Both actors are too old to engage audiences the way they would need to. We'd need to see youthful swash-buckling and adventuring. It also would be a tough sell to fans to bring two new actors. It's a great idea, but not sure how they could pull it off.