Ireland, whose contract at Aston Villa expires at the end of the campaign, is one of two players - together with Liverpool winger Oussama Assaidi - on a season-long loan at the Britannia Stadium.
Premier League clubs are only allowed to have two loanees in their squad at one time, barring exceptional circumstances, meaning Stoke cannot currently bring in another player on a temporary basis.
In a press conference on Friday, Hughes said: "We are looking to get things done with Stephen on a permanent basis, and we are hopeful of being able to do that.
"It would free up a domestic loan space for us, which could be important for us.
"We would like to use that loan space on somebody who we feel could come in here and help us over the next few months."
"Ozzie's intention, certainly when he came here, was to go back to Liverpool and try and force his way back in there," the Welshman added.
"I haven't spoken to him since, but if he does change that view then we will look to do something in the summer if at all possible."
