Gruden wont leave broadcasting, the guy is making more money then he would ever as a head coach and so far it seems he is enjoying it much more then he did coaching. Not to mention at the start of this broadcasting season he signed a three year contract with NBC or ABC, whoever he is with.
Cowher wont coach in the NFC, he's already stated it in a few interviews when there was heavy talk about him possibly coaching in Washington. He wants to stay in the AFC if he ever makes a come back to football.
Honestly who knows what the end of the season will bring, maybe the front office gives Coughlin another year or maybe they give him a front office position and then we are in the hunt for a new HC. I could see John Fox being kicked out of Carolina, he could possibly be someone to check out, maybe we can lure the Big Tuna out of retirement for a season or two let him rebuild a winning team.