A federal judge has approved a procedural agreement in the ongoing dispute between Coinbase and Michigan regulators. This clears the way for Detroit to become the first U.S. city to formally challenge sports-related prediction markets in court. In a March 26 order, Shalina D. Kumar of the United States District Court for the Eastern District of Michigan signed off on a stipulation jointly submitted by Coinbase Financial Markets Inc. and state officials. The agreement resolves a dispute over recent filings tied to Coinbase’s request for a preliminary injunction and sets a revised schedule for additional briefs. ### Detroit looks to file an amicus curiae brief Potentially the biggest development in the latest order is Detroit’s planned involvement in the case. City officials approached both parties seeking permission to file an amicus curiae brief, a filing that allows a non-party to offer the court additional context, expertise, or legal arguments.…