Wigan have announced Uwe Rosler as their new manager after agreeing compensation with Brentford.
Marseille have parted company with manager Elie Baup in the wake of Friday's defeat to Nantes at the Stade Velodrome.
Coke was out of contract at Hillsborough this summer, but has now committed his future to the Championship club.
The 27-year-old joined the Owls from Motherwell in 2010 and has made 55 appearances, scoring five goals, while also enjoying loan spells at Bury and Swindon.
Eighteen of those outings came last season as Wednesday narrowly avoided the drop and Coke will be keen to become an integral part of manager Dave Jones' starting XI next term.