Saw on the DFW Spotters FB page that repeats what we all knew, last MadDog out of Diff-Dubya will be on 4 September. What I didn't know is that it'll be going to ORD, and according to the post it's already sold out--AA80 is the flight number, arriving from CLE as AA250.
Last I'd heard before yesterday, as of a few weeks ago, the last scheduled flight for an MD80 was rather unceremoniously something like DFW-TUL on the night of 3 September, and there were several other MD80 flights from DFW to various outstations scheduled right up to it (including DFW-MSY a few minutes before).
Apparently, between then and now, they added this as a special flight (of course, AA80). I searched yesterday and found only a Main Cabin flexible fare for $919. Oh well. I had the fortune of flying N984TW (the last MD80 series ever built) last month, so that can be my farewell flight.