[Suicide Junkie]

How about a planetary assault?

Capital ships bLasting platforms from above while Heavy transports deploy troops to attack.

Or, If you've got some cool effects available, ships exiting a warppoint, or flying past a black hole, or laying mines near a star.

You could have a spacedock scene, with some ships being repaired after battle, and a new one under construction.

Maybe a domed colony, busy expanding the domes and constructing facilities.