Plus, with everything that's happening with the wall and the white walkers - they're gonna all have to band together and fight together against them and bloody well get over it.
I think the white walkers are gonna break through the wall before Dany comes over, but Jon's gonna survive, which is how he becomes a dragon rider. White walkers are gonna destroy most of the armies in Westoros, and it's gonna take her Army to kill them off but she dies in the process which is why Jon ends up on the throne.