You can most certainly request for probation to be terminated. Your best bet is to have an attorney file a motion on your behalf. Even though there is a new judge, they can still hear the motion. No one can say for sure what the chances are, but it is possible your request will be granted. It is also possible that your request will be denied. Considering that probation should have expired already and you requested an extension to make sure everything was paid (and now everything is paid), I think you have a compelling argument. Good luck!