I think it's good to keep it open until December 31, 2014 because that would let us post final links to the AirTran final flight, etc. and share them on this forum before it is put to rest.
As an interesting note: all business class seats and low cost seats on the final flight have already been sold out. I was thinking of going, but if I can't fly up front then that's not how I want to remember my final AirTran flight. :-)