Game Of Thrones Season 6: 5 Ups & 5 Downs From Trailer 2
2. Sansa's Rebirth
After way too long spent being horribly victimised by pretty much everyone she encounters, it seems that the tide is turning for Sansa. She's acknowledged how much she has lost (after initially focussing a little too much on what she could gain from personal relationships) and wants the people who took it from her to suffer in return.
It definitely feels like Sansa is adopting some of Lady Stoneheart's vengeful spirit - albeit with completely different details - and steeling herself to do things she's never even considered before. If that means she's going to be reborn as a puppet master rather than a pawn, that's a major positive for her arc. If it means she's going to be reinvented entirely as a cold hearted b*tch who leads her military allies against her targets with no concern for cost, then it will be even better.
Either way, this trailer definitely marked a dramatic shift in her as a character, which can only be a good thing.