In a interview with Entertainment Weekly Star Trek: Discovery producers Aaron Harberts and Gretchen Berg said the following:
“Jonathan Frakes will rejoin the Trek world with Discovery,” writer-producer Gretchen J. Berg told EW. “He’s a fantastic guy and great director.”
Added fellow showrunner Aaron Harberts: “Our cast is dying to work with him.”
Frakes started his directing debut on TNG’s 3rd season episode “The Offspring”, then later DS9, Voyager and feature films First Contact and Insurrection. Since Trek, Frakes has gone on to be one of the most in demand directors in the film/tv industry.