The 24-year-old midfielder has been a key figure for the Saints in recent years - helping them to earn promotion to the Premier League and then consolidate a standing among the elite.
He has, however, slipped down the pecking order this season, with Mauricio Pochettino having dipped into the transfer market to increase competition for places.
Cork has been restricted to just five substitute appearances in the league as a result and concedes that he does not know what the club's plans for him are ahead of the winter transfer window.
He told The Echo: "Obviously, I've been thinking about what part I'm going to play in this squad. I haven't played that much, so it's going to cross anyone's head to think 'what use am I going to be in the squad?'
"I'll see what happens in the next couple of weeks and see if he (Pochettino) uses me. I'm always happy to be part of the squad and play whenever I'm trusted."
Asked about his dealings with Pochettino and any talks which may have offered an indication as to what the future holds for him, Cork added: "Nothing much. I haven't really spoken to him much this season.
"We'll have to review tomorrow and see what happens from there, see what players are fit and if I will be any use in the coming weeks."