Fergusson desparts wouldn't effect Solitary Warfare

After news that Rob Fergusson who a game programmer veteran having worked on franchises including Half-Life, BioShock, and Microsoft Train Simulator. But he's best known for his work on the Gears of War franchise. He's been involved in every Gears of War title
since the series started in 2006, and in 2014 took charge of The Coalition -- the studio tasked by Microsoft to handle the Gears of War franchise. The Coalition has launched three Gears of War (4,5 & Tactics)

Fergusson announced that he's leaving the Microsoft
franchise to join Blizzard Entertainment. Starting in March, he'll "oversee the Diablo franchise.". So he leaving The Coalitions,so what mean for solitary? Actually noting! Only role Fergusson well as executive producer along Bonnie Ross and noting else. Staff
over 343 Industrial explain Rod departs wouldn't effect game development

"Thank good luck to Rod Fergusson over Blizzard. And Hopefully our friends over The Coalition find a New head studio taking over the studio after. But with Fergusson departure company. Solitary Warfare going as plan without Fergusson.
Our friends Coalition still co developed with us (343) on game,we still have plans for the game. Don't worry solitary still be ing in works and not gone."-343 Industries Staff

Solitary Warfare is still happened (in early development),and good luck for Rod Fergusson future over blizzard and future over seen Diablo Franchise

:)