DC Entertainment has released their current schedule for Young Justice: Outsiders, Doom Patrol, Swamp Thing, Stargirl, and Harley Quinn will debut. DC did make it a point to say at the bottom however, "Subject to change."
Titans season one is set to run from October through late December, in-line with the previously announced October 12 debut date and weekly schedule. The show's second season, which writer/producer Geoff Johns announced Wednesday, does not appear on this calendar.
Young Justice: Outsiders appears to be debuting in late December 2018 and running through early February 2019, and then returning for a second half/next season in June 2019.
Doom Patrol is framed to debut in mid-February 2019, and run through late May 2019.
Swamp Thing is looking like a late-May 2019 launch, running through late August 2019.
Stargirl appears to run from late August through late November.
Finally, the animated Harley Quinn looks to debut in mid-October 2019 and run through into 2020.