Sadly, The Unit won't be airing any additional episodes during this TV Season, but Executive Producer Shawn Ryan was recently quoted as saying that he thinks the chances for the show to come back in the Fall are pretty good, though they won't know for sure until May.
"When the strike ended, we were hoping to get additional episodes for the spring, like most shows." However, "CBS didn't need the episodes for April and May because the network had filled the schedule with new episodes of reality shows like "Big Brother" and "Survivor."
CBS however thinks highly of the program and ratings-wise it has been doing pretty well, which is why a Season 4 is looking good.
Stay tuned for more info!