One thing you have to remember, is that Peter was in better shape for the Wladimir fight than he was for the second Toney fight. It's also a lot more easy to look good against a 5'9 former middleweight with little to no power at heavyweight, compared to a 6'6 superheavy with a hard punch.
Peter did improve somewhat though, so i expect him to do better. But i think he'd still lose.