Game of Thrones Season Four

The past three seasons of Game of Thrones have followed a pattern of a semi-major event around the halfway point, followed by building to a major climax in episode nine, with ends tied off and led into the next season in episode ten.  This made sense with the first three books following sequentially, and they are through around two thirds of book three.

However, with Feast for Crows and Dance with Dragons taking place largely simultaneously, and a large portion of A Storm of Swords still to occur, there will likely be elements of three different books this season.  Considering the source material, the pattern will not follow for Season Four.  Instead expect more major events consistently throughout the season.

Kings Landing
Marriage of Joffrey and Margerie, Joffrey's death, probably in the second episode "The Rose and the Lion" with Joffrey being so kind as to finally die
Trial of Tyrion
Escape of Sansa
Trial by combat between Oberyn and the Mountain
Murder of Tywin 
Escape of Tyrion
Cersei ruling by default.  defaulting on debts to the Iron Bank, eproving a Lannister may not pay their debts, encountering probably a cominbation of Noho and Tyco

The Wall and Beyond
Battle at the Wall
Jon Snow elected Lord Commander

The Riverlands
Lady Stoneheart emerges


The Iron Islands
Hoping this is where we cut some time.   But I think they could get it down to 3-4 scenes if they really felt like they had to do it. 

The East
I think we are maybe a season or a season and a half away (episode 5-09, max) before Dany rides Drogon out of the pit, possibly signaling the beginning of the end of our time in the East.

Once that happens we are, sadly, likely to pass GRRM's published material.  If this happens, it means he has until the end of 2015 or the early months of 2016 to get The Winds of Winter out, assuming he's not providing pages to Benioff and Weiss on the down low.  We do know he's shared the broad strokes ending with them.  
Unfortunately, it sounds like Oberyn is the only Dornishmen cast, meaning next season will likely be the season of Dorne.

Predicting the season ends with Lady Stoneheart