I think this is the part where Baelish shows his true colours.
Have the Wildings killed, Jon Snow imprisoned and marry Sansa.
Then he'll be the Protector of both the Vale and the North.
If Sansa doesn't agree, there's always the option of killing Jon.
Or for better plot twist, have Sansa in Baelish' shoes instead.
Sansa becoming a villain.
Joffrey is dead. Tywin is dead. Ramsay is dead. GoT needs a major villain.
The Night's King and High Sparrow can't be those because they're too boring.
And Baelish's character is slowly falling into obscurity.With just two seasons left, his character plot needs to be resolved soon.