More litigators are joining in for the escalating contract dispute between Georgia’s top medical insurance provider and one of Atlanta’s biggest hospitals.

Lawyers for Northside Hospital and Anthem Blue Cross Blue Shield are preparing for a courtroom round two. They face a Tuesday deadline for briefing in advance of a second hearing to be held sometime the following week in Fulton County Superior Court. Hospital lawyers will be arguing for extending the temporary restraining order they won the night before New Year’s Eve, keeping Anthem from cutting off the contracts. Anthem litigators will be opposing that and seeking removal of the dispute to the privacy of arbitration.