I've started to wonder whether we will see an evolution in thought by Danaerys...a re-evaluation of her need to "take what is hers with fire and blood."   Up until now, she's been very much like Stannis.  Someone told her she is entitled to sit on the iron throne, so it's been her overriding mission to sit on it ever since the death of her brother.  (When in fact she has absolutely no claim to the throne because she has ovaries.)  But that seems like a shallow goal in light of the things she has achieved and can achieve.  There are no slaves to free in Westeros, and her role as the Breaker of Chains seems to be what is giving meaning to her life right now.  Outside of this story she's been fed about her entitlement, why does she even want to go there when she could set her sights on much more worthy goals?  Of course, it doesn't help that he closest advisors are Westerosi, but still.  Why not unite the "free" cities or work to restore what remains of Old Valyria?  Valyria is her true birthright, after all.

All that being said, it's obvious that Danaerys' dragons have some role to play in defeating the White Walkers, so we know her attention will be diverted westward eventually.  But I would love to see an evolution where she returns to Westeros to help defeat the White Walkers rather than to reconquer what she believes she is entitled to.  And maybe that warlock tower scene in the deserted throne room with the snow falling around the Iron Throne is a foreshadowing that what she thought she wanted isn't so valuable after all.