I'd just keep checking. Often a production will stop selling tickets for the final performance until they've heard back from all the people involved and gotten their tix settled. Then, they'll release what's left. (IF, of course, there are any.)
If we're not having fun, then why are we doing it?
These are DISCUSSION boards, not mutual admiration boards. Discussion only occurs when we are willing to hear what others are thinking, regardless of whether it is alignment to our own thoughts.