Comment I would think that some would go back to Caprica (Score 2, Insightful) 852
If all the bad Cylons got wiped out on the colony, I am surprised that some of the Colonials did not opt to go back to the Colonies. The indications that we have from the show is that the nuclear attack did not render the planet uninhabitable like the Cylon Earth.
There should be a good amount workable technology left and inhabitable structures. Supposedly you only need about 1000 to 5000 humans to repopulate.
The other thought I had was whether anybody went back to pick up the Number Three D'Anna Biers.