This came to me last night. I think the asteroid field should be visable before our heros reach it since currently it kind of comes out of nowhere. Maybe it could even be added to the background of some of the orbital Hoth shots as well. General Rieekan said that there's a lot of meteor activity in the system, so maybe it could be visable, kind of like a reference point to show which direction people are flying, Han towards it, Luke away from it.

I also think it'd be cool to see other meteorites entering the atmosphere, but that may be too distracting as the only one we see is a probe droid, and those unfamiliar may believe they are just dozens of probes landing.

Anyway, that's what I came up with.