You need a good attorney and some luck.
I'm not real sure about NY law specifically, and I'm not a lawyer (yet...I'm a law student) so I can't in good faith give you legal advice...
The statute of limitations really has nothing to do with this. As long as the city filed their case before the SOL ran, the case is valid no matter how long it takes to hammer out. I.e. The city probably "filed" their case against you the day they gave you the ticket. It's been an "ongoing" case since then.
That said, I don't know for sure. Call a traffic atty.
In NY you'll probably be looking at $150 - $200/hr for a decent traffic atty. If you get separate court dates, you're looking probably 25 - 30 hours of this guy's time, bare minimum.
If you don't get an atty, you will lose your license for sure, probably suffer HUGE HUGE fines, and POSSIBLY spend time in jail (again, i"m not well versed in NY law and this type of thing varies GREATLY state-to-state).
With an Atty, you'll probably have your fines cut and MAYBE keep your license on a conditional basis.
The fact that the juge wants 11 court dates means he wants to **** with you. He wants this to cost you time/money/effort. In your situation, as i've said now 4 times, call an atty immediately. They are the only people that will be able to give you competent advice.
But if they are unable to join all 11 tickets, you're looking at $3,000 in fees, minimum.