What if the Night King warged into Bran?
Whatever happened i hope that part of the story is not over. Would really like to see more of both characters, origin story of the NK, the children, more on Bran's powers and hopefully something cool enough to match up to the wild theories about how bran may have set up important events today by messing around in the past (especially the one about the Mad King).
Doubt it will happen though. This show is mostly fan service now and Bran doesn't have the popular appeal of Jamie, Jon, Cersei or Dany
Pretty certain the point of last episode was to end that storyline and move on to what writers intend as the actual grand finale