My question involves criminal law for the state of: GA

Okay so a few months ago I was arrested for shoplifting about 40 dollars worth of stuff from a Walmart in GA. After getting bailed out for 220, I paid my 150 fine to Walmart. Months later I have still not received a court date. This is my first offense, and first thing on my record at all.

My questions:
1. Would it be in my best interests to wait through the statute of limitations? (isn't it a year?)
2. If I did so, and never went to court, would I still be able to get it expunged?
3. If I do finally get a court date what should I expect for probation/fees?
4. How hard will it be to get it expunged, and what would the fees be associated with that?

Thank you so much!