The Yeovil Town defender has been with Scunthorpe for two weeks on loan, but Curle is interested in signing the player permanently.
"I'm still looking to strengthen and I've spoken about signing Michael Rose permanently," he told Sky Sports.
He has already signed Iron winger Wayne Corden on a month's loan this week and is hoping to add former Doncaster Rovers defender Steve Foster, who is currently a free agent.
But the player has delayed a decision as he is keeping his options open.