The 34-year-old defender has been made an offer to stay with Pompey but with full pre-season training set to start on Monday the manager is still awaiting a definitive answer.
"Ric's enjoying his time off," Whittingham told the Portsmouth News. "I saw him a couple of days ago and had a coffee with him, just chatting and seeing where he is and he is quite relaxed about things, so we will see.
"It (the offer) is still there, nothing has changed, we would like to see him here but there is a lot for Ric to think about.
"We are waiting for an answer from him, the ball is in his court."