'Elementary' Season 7 Air Date, Spoilers: CBS's Sherlock Show Wraps Up Production on Milestone Episode - EconoTimes https://t.co/hAlqHUBloG via @— Primadonna (@primadonnamagph) October 23, 2018
-Jonny Lee Miller will be directing some scenes in season 7, and has already shared images of them on social media
-The cast and crew recently celebrated filming episode 150. There are currently 141 episodes of Elementary, so this tells us they have since shot 9 new episodes.
-No official premiere date has been set, but April 2019 seems likely
Source 1 / Source 2