Game of Thrones season 4

Everything you said here is correct. Lots of changes in that episode.

 Spoiler

Fyi, Jon never goes back to Craster's because Coldhands kills all the mutineers. They never get the chance to capture Bran or interact with Jon. Btw, pretty sure that that While Walker that turned the baby into an Other is the Night's King. Did you notice that the spikes on his head look like a crown?

Apparently the characters name was spoiled in a synopsis on the HBO site, then quickly taken down. I haven't heard it yet though.

Since G.R.R Martin spilled the rest of the story to the creators of the show, a lot of people think that scene is one that will show up in The Winds of Winter, so I guess even book readers are going to be surprised from this point on.