Well, one theory is that the time bomb will free Earth in time temporarily. If we assume this is true, or if something similar happens, then that means anything outside of Earth keeps moving.
So, once they're out of statis, they'll be met with changes on a galactic level. Instead of us all seeing the characters 'wake up' to changes and have the fans all questioning what's happening, this bit here may show us what's going to happen while Earth is out of commission. That way, once we return to the main cast, we can focus on what they're going to do, rather than what happened around them.
This is all a theory though, the whole discussion over the bombs effects are still lost on me because my knowledge on the related subjects are basic at best.