You’re looking for a brand-new standalone story like Razor . Much of it is reused footage from the early seasons.
Here are a few options for a post about , depending on the tone you want: Option 1: The Die-Hard Fan Review
It's more of a character study than a plot-heavy epic. It adds some great texture to the Cylon civil war, but don't expect it to fix your feelings about the series finale!
Seeing the destruction of the Twelve Colonies from a fresh, terrifying perspective.