Kohan will stay on as showrunner of the Emmy-nominated series, according to Variety, and is working on a pilot for Showtime with Stephen Falk, a fellow Weeds writer.
"Having gotten to second base with Lionsgate in my former 'under the shirt but over the bra' deal, it's a thrill to now be in bed with them and going all the way," Kohan told Variety. "Let us hope our creative offspring make us both proud and happy for years to come. And when I say 'come', don't read into it. It's a business deal. Get your minds out of the gutter."
(Lionsgate also owns TVGuide.com.)