Lord "Blubber" is actually a major player in the game. He seems like a lethargic, scared, fat piece of suet, but behind that facade he´s a grand schemer. I guess, when the time is right, we´ll see another civil war, this time in the north. The pale-eyed flayer and those Frey bastards will definately pay for what they´ve done.
We don´t get a clear hint to where Davos is sent, but the other hints, like the travel direction Osha and Rickon are taking, and Davos remark, that he´s going "where canibals live" (or something like that), hint that he´s sent to Skaggos. Can´t wait to read more about that island, especially since GRRM has announced that Osha will be a POV-character in "Winds of Winter".