The 27-year-old spent last season on loan at Newcastle United and found the back of the net 14 times in the Premier League.
"I don't see Remy wanting to come back and play," Redknapp is quoted as saying by the Daily Mail. "He's talking about playing Champions League somewhere.
"I wouldn't know what he'll do, but I think he's got a buy-out clause which is at a reasonable level. Not much more than we paid for him."
Remy joined QPR in January 2013 for a reported transfer fee of £8m.