I don't for one second believe he has a cure, but as to what he's up to, I haven't got a clue.
I read the comics up until Michonne attacked The Governor. In the comics she cuts off an arm and his genitals.
I hated the comics, the way they write the women is so sexist, made me sad to read them. Michonne and Carol are two of my favourites on the show but in the book Michonne is teh evols slut and Carol is teh lunatic who kills herself because she is in love with Rick and Lori but they reject her. Utter utter crap.
Every episode so far has left me shocked at the gore. The first episode with the face eating and oh God when they revealed Bob and what they'd done. I bloody love it!