They don't release every show. What happens is they check the recording to see if it's good enough to release. Sometimes the recordings will be corrupted or have some irredeemable sound issue which prevents their release. It looks like they've moved onto their 2012 shows now.
well hopefully they do, I will definitely buy it.
I will too. They released the two shows prior to it so if the recording's good I see no reason why they wouldn't release it.