What If? #1: River's Final Appearance

With series 7 of Doctor Who coming later this year, as well as the confirmation on the departure of Amy and Rory, there's one other question that got me thinking.  Will this be the last we see of River Son as well? And if so, how will they make her final appearance?

And that's when my mind got cracking. Why not make an episode where River informs the Doctor she is going to the Library, thus causing the Doctor a dilemma. He will know what's to come, since he first met River during her final days. However, will this make him try to save her, or will it be a fixed point in time and find it as an inevitable event? Either way, if they do make an episode like this, we will see the Doctor trying to cope with this upcoming event.

So I had in mind some scenarios, but this is just something I would like to see as a fan. The Doctor travels to the Library to try to save River, but doesn't want to run into his previous incarnation. Either that, or the Doctor prepares a way to try to extract River from the computer so he can bring her out once the events that unfolded there are done.

Either that, or perhaps he just tries to warn her about the Library, but in the end realizes it's hopeless. I don't know, but if they are going to say farewell to River Song at some point, they have to mention the events of the library in some manner and how the Doctor will face it.

That's all the speculation I have for today. Until next time!