I love your point about the stasis and the way that ties into what this show is so clearly doing with myth. And thus I am even more convinced (not that this was hard) that she's getting out of there someday. Maybe we won't see it, what with the exigencies of television, but I feel like maybe if something crazy happened, like the show went on just long enough, and Moffat stayed in charge, and he got to end the story (or at least this part of the story) on his terms, we might get that end. I certainly don't expect it, but I kind of like to think that he gets what happened there and might want to go tie up that loose end if he got the chance to do so in the right moment. In the meantime, there is so much more of River's story to tell, so I'm okay if I don't actually get to see that end. I will just continue to imagine it! (In my brain this involves River and the Doctor, both "finished," finally catching up to one another's time and living happily ever after because good god, what a shipper I've become!)

As I've mentioned elsewhere, the symbolism of River the storyteller, River in the library, etc. helps a lot with my attempts to make peace with the ending. But at the same time I don't want her to be ONLY a symbol for all eternity. River works so well because she's BOTH: she's got this important thematic role, but she's also a person--and a quite fully-realized one (for all that we don't yet know about her) at that.

But she WILL get out of there! After all, what have we learned about what comes to those who wait! Maybe River waits in the library, telling her stories, until it's time for her--and the Doctor--to be where they're supposed to be. (I kind of love the way Moffat is totally validating my "but I believe it will be this way!" approach to this. Woot, fairy tales!)