Prediction:
The Night King sits down with Jon and Bran. Explains (via Bran who can read his mind, cause he can't speak) that all he really wants is baby Sam back, as he was stolen from him.
Everyone laughs the whole misunderstanding off and parties. The NK catches a glimpse of Cersei and finds he real hawt.
The NK goes back north with baby Sam, and Cersei, who finally feels some warmth within her, as she gets the NK's D.
Sam is executed by Jon for causing all this mess.
His final words are "I just wanted a GF and a son". Jon responds "you should have grown a pair and dated some girls, dickhead" before swinging Heartsbane to take his head.
The end.