Well, we need to see Daenerys going to the House of the Undying, Jon, and Arya"betraying" the Night's Watch and joining the Wildlings. Based on the trailer, it looks like we'll see Brienne and Jaime again as well as Sansa talking to Littlefinger.meeting Jaqen one more time and getting her coin
Anything else?
Something will also happen with Theon and Winterfell... the description of next week's episode makes me think: [sblock]The offer from Maester Luwin is for him the take the black, similar to the books. That will probably be after Ramsay Snow surrounds Winterfell. Snow will then betray both Theon & Luwin and sack Winterfell... they'll keep him helmeted & in armor. [/sblock]