Michael Kightly has been left out of Wolves' 25-man squad for the first half of the season after suffering a setback in his recovery from knee problems.
The 24-year-old winger has not played since November 2009 because of a patella tendon injury and is now likely to go out on loan once he is fully fit.
Wolves boss Mick McCarthy said: "We're just going to let Kights get on with it. He's still not quite ready to come back and there's no pressure on him - it will take as long as it takes.
"There's no time limit on it either. When he is fit, he won't have played since last November and it would be very difficult in that situation to go straight back into the Premier League.
"So, when he is ready, we'll be able to discuss with him the possibility of going out on loan, which he can do before we have the chance to revise the squad in January," McCarthy told the club's website.
Bent, 32, will be playing for a 14th professional club, and he believes he can still make an impact in the Premier League.
"Once you stop believing in yourself you might as well hang up your boots," he said. "As a footballer, you try and push yourself every day to achieve more and more.
"I'll never stop learning. I might be one of the older members of the squad here but I can still get better. I am sure the boys will teach me some stuff and hopefully I can teach them some stuff."
The Wolves boss added: "I am delighted with the squad I've got at my disposal. Now we've got the 25 sorted and we can crack on without any interruptions until January.
"And there are a lot of lads waiting in the wings who are ready to take their chance if they are called upon."