Next Episode confirmed info:

>Cersei doesn't show up to her trial.
>Cersei blows up the Great Sept of Baelor with wildfire, killing Mace, Loras, Margaery, Kevan, High Sparrow, some Sparrows, some random citizens, and Lancel
>Qyburn has his little birds kill Pycelle
>Tommen commits suicide by jumping out of a window
>The Mountain kills Septa Unella, Oberyn/Elia Martell style; possibly kills more Sparrows
>Arya kills Walder Frey
>Arya makes Frey pies(possibly just poisoned pies)
>Jon is named King in the North by the Northern lords, Manderly(or someone who fits his description) gives a speech that convinces them all
>Dorne will appear
>Sam arrives at Oldtown
>Davos makes Melissandre tell Jon that she burned Shireen
>Bran sees the rest of the Tower of Joy scene
>Bran and co. arrive at The Wall, Benjen leaves
>Jon learns his parentage(not 100% confirmed)
>Daenerys sets sail for Westeros(final scene)