No. The way you wrote the original post I thought that your passes were unused. As long as the passes were first used more than 14 days ago they cannot be upgraded or modified in any way.
Your best option might actually be to use the GAD tickets and then upgrade to new 10 day No expire hoppers. That is one day of the trip, leaving nine days remaining. Tehn finish off your old tickets. If you tend to do only a few days at a time, the new tickets will last for at least two full trips (in addition to the one day used this trip) and you will have the advantage of both the value of the GAD plus the long-term savings with the ten day no expire.