Decker is out of contract at the end of the league year, and there is doubt whether he will be able to sign a long-term deal with the Broncos due to salary cap limitations.
He told reporters: "That hasn't been a thought on my mind. I'm going to enjoy the season we did have. [I'll] look back at this game and wish we could have a lot of things back.
"As far as my future, that will be something I think about when the time comes in a couple of months."
The 26-year-old had just one catch for six yards in his side's loss to the Seattle Seahawks on Sunday.