My re-alignment dream: Jacksonville Jaguars moves to LA and switches with STL in the NFCW, so now STL is in the AFCS w/ Indy, Hou, and Tennesee. Then you swap Houston and Kansas City.
Now NFCW is SF, SEA, LA, AZ
AFCW is Oak, SD, Hou, Den
AFCS is Indy, Tenn, STL, KC.
Makes the most sense regionally to me and has huge rivalry potential especially in the new AFC South. I've always thought KC and STL should be an instate play every year rivalry that could become huge.