When does Star Trek: Short Treks return?

Star Trek: Short Treks is an American science fiction anthology television series. It consists of several 10- to 20-minute-long shorts that use settings and characters from Discovery and other Star Trek series. The first four episodes aired from October 2018 to January 2019, between the first and second seasons of Discovery. The second season of shorts aired between October 2019 to January 2020, with the last short serving as a teaser for the latter series.
Star Trek Short Treks tells a stand-alone story that explores key characters and ideas from Star Trek: Discovery and other Star Trek series.