i reckon it would be good to see the story of Merle and how he survived by himself from when he sawed his hand off up till the same stage as the main storyline?
http://blogs.amctv.com/the-walking-dead/2012/03/glen-mazzara-fan-interview-part-ii.php in this link Glenn Mazzara's said "Let's just say that it's not the last we've seen of it. There's a story behind that helicopter". Well they can't tell a story of the helicopter and in the show it would take to long i reckon at the very end of the webisodes it's Merle flying the helicopter (which would be the end of the webisodes/near end), that would be really cool then the webisodes join back onto the main storyline again, what do you think?