My guess is Snow and Khaleesi have a baby....and so it goes
That’s likely majority guess so it could be something else
The most predictable outcome is that Snow dies in the penultimate episode leaving a pregnant Khaleessi as the last surviving major character, ruling over the remains of a kingdom in which nearly all of the subjects have been killed. I hope that the writers are not that predictable.
Would that make Jon the father of his cousin and Kalisi the mother of her grand nephew?