From GameWatcher: “Publisher Slitherine and Battlestar Galactica Deadlock developer Black Lab Games today announced Warhammer 40,000: Battlesector as their next turn-based strategy game revolving “around army sized turn-based strategical battles on grid-based maps.” Exploring the days after the Devastation of Baal, its campaign follows 8th Company’s Sergeant Carleon and his efforts to clear Baal Secundus of Tyranids while testing the “skills and stability of the new Primaris Space Marines.”
Source: N4G PC Warhammer 40,000: Battlesector Pits Blood Angels Against Tyranids Later This Year