Stupid to speculate coming off such an amazing season, but i'll bite a little.
John Fox is going into year 3 of his 4 year contract. These next 2 years, possibly 1 will set up how long he will be here for. So many potential scenarios and outcomes...
If we get to a Super Bowl in the next 2 years, his contract will be renewed IF he wants it renewed. If not, I think it comes down on if John Elway think he has what it takes.
My take: Minimum 2 years.