Part four of "The Ranch" is set to premiere on Netflix as scheduled Dec. 15, with additional episodes slated to premiere some time in 2018. Netflix has traditionally divided the series into 10-episode batches, each of which is part of a longer season. It is unknown how many episodes from will debut this month and how many will be held until next year. Masterson is not expected to appear in any episodes released after Dec. 15. Also unresolved is the fate of Masterson's executive producer credit on the series.