Deadline has reported that an animated series based on Deathstroke is currently in the works for CW Seed. The series was announced during a CW upfront presentation by CW Network president, Mark Pedowitz.
In the comics Slade Joseph Wilson aka Deathstroke is a well known assassin. He first debuted in The New Teen Titans #2, which was released in December 1980. He later received his own standalone comic series under the name he was known originally, “Deathstroke the Terminator.” Over the years he has appeared in various other media such as the Teen Titans animated series, however due to the violent nature of his name in the comics he went under the name Slade. He has also appeared in various live-action productions including Lois & Clark: The New Adventures of Superman, Smallville, the Arrowverse, and most recently a cameo appearance at the end credits scene of Justice League.
No other details are confirmed at this time so stay tuned for updates.