re: Crackpot ASOIAF Theories SPOILERS

I don't know that it necessarily means that she's marrying Ramsay. I don't see Littlefinger giving her up in that capacity, at all. Largely because I don't see him putting his prize at risk like that.

Now it may be that they are there on invitation as being Arya's "family" (since Ramsay and Co. really want to sell this union) and they're curious as to the state of Winterfell and whether Arya is still alive (and possibly to acquire her as well). There could be a lot of other variables once they reach that point on the show that doesn't have anything to do with Sansa marrying Ramsay.

All that said, even if they do go that route, I don't know that it necessarily jumps the shark. I think I'd get some real satisfaction out of seeing Sansa frick over Ramsay Snow in some shape or form. Especially if the show is definitely going to explore other venues outside of the books. And I haven't been terribly disappointed with D&D's changes outside of the omission of Lady Stoneheart.

At this point it's probably just best to accept that they're two different mediums and because GRRM is going to write at his own pace show be damned two different storylines.