Hello SamTheAlone!
If a sequel, I'd prefer one like Aftershock (better story, on Earth, better and simpler character system, more and simpler bases than AL, better bases than AL, possible autodefense of bases),
with some contents and missing features from Aftermath (air fighters, trashy mood, corner fighting, flares, animated pictures in all windows)
and Afterlight (bigger screen resolution, nicer character interface).
Aftermath is too simple, Afterlight is too complex.