Without knowing your son's age, the specifics of the new charge (on a controlled access highway, or a two-lane) his license type, and his driving record, it is difficult to say what might be accomplished. Even without the mandatory suspension he could be in point suspension territory.
He should plead not guilty, demand a jury, and consult a traffic lawyer.
This answer is provided for general information only. No legal advice can be given without a consult as to the specifics of the case.