I don't know if I'm reading way too much into things but the way the show seems to be focusing on Daryl is making me think he is going to be killed-off pretty soon.
They did the same with Jim, when he was digging the graves in season 1, Dale with the discussion about Randall and Shane just basically going crazy. I think now Daryl has stepped up and now feels valued; like helping out with Baby Grimes and soon to be reunited with Merle, it all seems to add up that his time is coming to an end.
Obviously they will keep him on the show for a while after he meets up with Merle again, but I think the end of S3 will show the demise of Daryl. I hope not because he's my favourite character but it seems especially so now that there is a game being released next year about Daryl and Merle.
Anyway let me know what you guys think.