Spoiler.
1) What an episode! RIP Hodor. Now you can stop holding the door, and rest in peace.
2) Sansa finally shows some balls (ironically in the first episode that actually shows balls).
3) Bran's plot is becoming dangerous for the show. Now, if it is nicely devised it might be the best thing ever, but opening timeline games might ruin the show (see Lost.) So, he caused Hodor's inability to speak. He started playing between past, and present, and caused the bad dudes to find his location through some sort of telepathy. Very very dangerous for the show.
If the theory that Bran caused the mad king to go mad is true, then we enter into the paradox that the reason why Bran is where he's now is because the mad king went made and the whole GoT thing became true. Now, if he's the one that caused the king to go mad, how could it happen the first time? Dangerous.