Sinclair's new diginet Comet TV launches on October 31st according to TVNewsCheck. From what RabbitEars lists, it will be carried on stations owned by Titan (New York City, Los Angeles, Chicago, Philly, Houston, San Francisco, Boston, & Honolulu) and Tribune (Denver, Indianapolis, Hartford, & New Orleans) in addition to Sinclair.
Comet TV schedule for 10/31-11/6
Another interesting thing I've noticed is that Comet is replacing Zuus Country on some Sinclair stations (including WICS in my area). RabbitEars shows a few Sinclair stations still carrying it in some markets where they have enough stations to not displace it. It seems that the affiliate base for Zuus has really dwindled.