According to Wikipedia, the July 2011 sessions were originally supposed to be for a new album. According to REM Timeline, the known songs recorded included:
A Month of Saturdays
We All Go Back to Where We Belong
I recollect reading that Buck was not involved in these sessions due to a back injury/surgery, though REM Timeline shows him performing live in the middle of the month. Was he on all of these recordings (I recollect he may have demoed Hallelujah)?
Were they really thinking about recording a new album, particularly when after-the-fact accounts suggest they had written Collapse Into Now as their swan song? Did they record other songs? Will they ever release Elephants?