http://www.zap2it.com/tv/zap-story-battlestargalacticarevisited said:
There always was a plan for Sci Fi Channel to split the airing of the final 20 episodes in two. But, because of the break in production, Moore and his fellow writers have had an opportunity to rethink a lot of decisions they made early on about the back half of season four (the airdates for which haven't yet been determined).
"We decided to revisit some of the episodes that we broke before the strike," Moore says, "and thought, 'No, we're going to change our minds about that.' We had some time to think about things. Some of the things we were planning weren't working as well, so we had a chance to reassess."
As to whether he's happy about this, Moore says, "Yeah, I'm happy that we got a chance to revisit things. Typically the writers don't get a break in the middle of the season to re-evaluate. You make a lot of decisions about where you're going, then you get really focused on getting there.
"The strike gave us a chance to step back and look at the big picture a second time, which is a luxury that you don't usually have. I know that it's going to be better as a result."