They did a piece narrated by Alex Kingston, telling River Song's story in order. The wording certainly makes it sound as if they will probably still have a few adventures together, with post-wedding River and post-fake-death Doctor living in the proper order for a little bit, up until A Good Man Goes To War, which is when they start moving backward from each other. Which means that at some point they'll meet for the very last time as a couple and then he'll never see her again, while she'll start seeing younger and younger versions of him.

It's about 13 minutes long and is kind of neat. It's linked here.