Hornby, a mainstay of the Dragons for the past 12 years, has given no guarantees that he will take up an option to play on next season.
Young announced his retirement last week and there could be a major changing of the guard at the club with Test backrower Beau Scott joining Newcastle and Hornby weighing up his future.
“The contract is a work in progress,” Hornby said.
“I think if I keep on playing good football then I will go on, but I haven’t decided yet. At this stage, I am just worried about playing well this year.”
The Dragons have made no secret of the fact they are searching for quality halves, raising doubts over Hornby’s future at the club.
“I think the club is just looking into the future,” Hornby said.
“If I do end up going around again that will be my last year. The club has to plan for that and I have no problem at all with it.”
The decision for Hornby to play on will be by mutual agreement.