My God was that brutal, I am with Mikey, when they started playing The Rains of Castamere I started getting a pit in my stomach. My wife started crying when they started talking about naming the baby Eddard Stark.
I also guess that kills the theory of Jayne being alive and carrying a Stark heir in the books.
Makes the season finale all the more anti climactic though, they really should have ended it with Catelyn getting her throat cut fade to black. Good analogy Bill on the "I am your Father" moment. I just hope Martin can finish the books without having to wait for the last few seasons to play out.
I don't think there is official word yet (is there?) on Crows and Dragons but I can see splitting them up to at least 3 seasons. With hopefully Winds of Winter out late this year/early next and probably being a two part season that gives him around 5-6 years to finish the series.
Also note, I am amazed at how many people haven't read the books. They are so amazing and richer than the snapshots you get in the TV show. I know they are intimidating due to their girth but they are much easier to read than Tolkien