To my knowledge there is no other way to move a fleet more than once during a game round. Or is there?
There are six ways (that I can think of) in which you can get an additional move in a game round:
- capture (either standard or Boba Fett's mission),
- Undercover action card,
- elimination (Return of the Jedi objective),
- Plan the Attack mission card,
- Hidden Fleet mission card.
Not all of them are methods that you can reliably count on, of course. All of them have their limitations or are highly situational, e.g. the last two require you to move unit(s) to Rebel base first and then move them with the mission.
Even Undercover has a surefire counter - if Empire does not reveal any missions or reveal them only in Lando's/Ben's system...