Andrea just seems to always side with the protagonist's conflict doesn't she!
-Don't read the spoiler if you haven't been up-to-date with show-
Yeah, the start of the preview shows the governor looking dazed with the arena smoked out, so I would presume Rick and co. did go back to save them. What I am interested in is how the group will react in the heat of the moment to seeing that Merle also needs rescuing. What I think will happen is that they will fail at retrieving Daryl, as Merle and Daryl will take off on their own. I don't remember seeing Daryl or Merle with the prison group during the sneak peak. I sure hope neither brothers die, so much more can be done with both characters. Oh the anticipation!