I'd like to see the abilities for strategic and tactical movement separated completely - currently, we have an ability to give tactical movement but no strategic (afterburners), but not the other way around - for every 2 strategic movement, you automatically get another tactical movement.
What if you want to change the scale of the game so that ships are slower in combat without slowing them down on the system map? Or what if you want to have "jump drives" (only useful for long distances - you pick a target and jump there, but they're not very precise and take some time to charge up so they're useless in combat except maybe for retreating) and "thrust drives" (only useful for short distances - they're not as fast, but they have more maneuverability)? (I hate to say it, but MOO3 had "star drives" and "system drives" which behaved much the same way
)