They’re going to have to add some tension. Things are starting to wrap up too nicely now. This is a change from the fractured kingdoms early on. We have Dany and Snow ripe for the merging, which includes ex-slavers, Dorathkians (sp?), Dorne, Arya, and a unified north. And then we have the Lannisters, whatever allies they have left, probably Theon’s uncle’s insanely improbable fleet of 1000 ships, and possibly the Red Woman’s magic. It’s becoming polarizing.
Which is actually great if season7 is the finale (actually hoping it is). That wraps up the political aspect in a neat bow, and it’s a matter of determining who dies in the battle. But if they intend to continue the story, there will need to be something horrible. Perhaps Littlefinger sabotages the relationship between Jon and Dany so that they are indeed at war with each other. Who knows? Maybe it takes reuniting Theon with Jon to reconcile things since they both know what it’s like to be not fully embraced by the Starks (though Theon’s actions are still unforgivable).
While the White Walkers are a threat, it’s still not being taken seriously. It took great effort for the northern houses to finally rally behind Jon. When he talked about the White Walkers, there was still that look of incredulity. So it’ll be hard to convince everyone else that White Walkers are a threat. Dany might not even recognize them as a threat, but that’s hard to imagine since she commands dragons and is immune to fire, so why would White Walkers be outrageous?
I’m hoping that maybe a dragon is taken down by the White Walkers and turns. That’ll make the threat even nastier.