TL;DR
Harley-Davidson has filed trademarks for 'RMCR' and 'RMXR', hinting at new Revolution Max-powered cafe racer and flat-tracker motorcycle models.
Harley-Davidson has filed trademark applications for the names 'RMCR' and 'RMXR' with the US Patent and Trademark Office. These filings strongly suggest the potential for new cafe racer and flat-tracker models, signaling an expansion of the brand's Revolution Max liquid-cooled V-twin engine platform.
The RMCR is believed to be a production version of the Revolution Max Cafe Racer concept, previously showcased earlier this year. The RMXR is likely a flat-tracker derivative, indicating Harley-Davidson's strategic move to diversify its performance-focused motorcycle offerings globally. These trademark applications, though not a guarantee of production, represent a clear intent for future model development.

