I just had a cool idea for Daryl's intro that incorporates a lot of things that people have been speculating about.
Daryl gets introduced as a member or even possibly the leader of The Saviors. He is also with his brother Merle, one of the other members of the group. At first he is an antagonist for Rick's group and ends up killing Andrea. (This is because many people think that she will die because of the "I always come back" speech) Later, Daryl ends up somehow becoming a part of Rick's group.
Let me know what you think.