Some of the casting for next year too implies that we may see some flashbacks. One description seems to fit Arthur Dayne and then another casting seems to possibly reflect a young Eddard Stark. Some people think since they've show a flashback already with Cersei and Maggi the Frog that they could do the same early on next year. Possibly showing you events at the Tower of Joy. Another casting seems to confirm a possible pirate character who may end up being Euron Greyjoy, Theon's uncle. They've been pretty mum about the Greyjoys in the show. I think they'll get some screen time next year similiar to how the Martell and Sand Snakes were introduced. A small family casted also seems to imply that Samwell's family with Randyl Tarlly, etc will be introduced as well. If Jon doesnt come back in season six he should be back in season seven. I think the show will want to beat the book's reveal of that though....

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