1. Yes, and that would make sense.
2. If the judge finds that it is appropriate to lower your charge to a misdemeanor, and you've been on probation for 2-1/2 years without incident, all fines and assessments paid, it would seem to me to be a waste of resources to keep you on supervised probation. Your other offense may factor into the judge's decision; we don't know anything about it, so you may want to run the facts past a local criminal defense lawyer who is familiar with the full facts and the judge.

