Peyton Manning walked out of the Broncos’ facility Monday with an unknown future. Broadcasting, coaching and consulting, all have been mentioned as options. The Broncos, meanwhile, walked into their future facing uncertainty on how to replace him.

Denver wants Brock Osweiler to return and has offered him a three-year deal worth about $39 million. It’s not known what guaranteed money the team offered. On a day devoted to Manning’s goodbye, Osweiler’s situation remained static through the early evening.

“I hope Brock is back,” receiver Emmanuel Sanders said. “I don’t want him to go anywhere.”

With the opening of free agency, when agents are allowed to talk to teams about their clients, but not sign them until Wednesday, Jimmy Sexton, Osweiler’s representative, explored options. The Houston Texans have shown interest in Osweiler. Coach Bill O’Brien received a firsthand look at Osweiler during scrimmages at Dove Valley in summer 2014 and in the Broncos’ second preseason game at Houston last season.

The Broncos have not heard much from Osweiler’s side since their contract offer. General manager John Elway hinted at last month’s NFL combine that Osweiler knew then of the Broncos’ parameters. The Broncos are in a holding pattern, but history says they will be prepared to move quickly to other options if necessary.

Osweiler, 25, went 5-2 as a starter, throwing 10 touchdown passes and six interceptions. However, he was benched in the season finale against San Diego after the Broncos committed their fifth turnover.

Defensive end Malik Jackson received interest from multiple teams Tuesday, most notably Jacksonville, Oakland and Chicago. Denver has not given up keeping Jackson, but its offer of about $11 million per season might not be enough.

“I talked to Malik, but our relationship is bigger than just us being teammates. He’s like a brother to me,” outside linebacker Von Miller said. “I want him to be in the best possible situation for him. You work so hard your whole life to put yourself in this position. I really feel like he should take advantage of the opportunity. Whatever happens, I’m going to be good with it. He’s going to be great. I hope the best for him.”

The Broncos are also attempting to restructure contracts for left offensive tackle Ryan Clady and outside linebacker DeMarcus Ware. But the quarterback position features the most intrigue.

“I enjoyed Brock being my teammate,” Miller said. “He’s broccoli. Broccoli, the master. I would love to have both those guys ( Jackson and Osweiler) back. I know Mr. Elway is doing everything in his power to get those guys back.”

Troy E. Renck: trenck@denverpost.com or @troyrenck