The Bears just announced their inactive list, and as expected, Mitch Trubisky is ready to go: 

Trubisky and defensive lineman Bilal Nichols will both return after missing time with a dislocated shoulder and broken hand, respectively. Trubisky has been out since Week 4's game against the Vikings and Nichols hasn't played since breaking his hand against the Broncos. 

Reserve offensive lineman Ted Larsen will also return, his first game since hurting his knee against the Vikings as well. It'll up to Larsen and Rashaad Coward to fill in at guard, especially with Alex Bars being a healthy scratch. Long was put on IR earlier in the week, and while Coward took most of the first-team reps in practice, head coach Matt Nagy didn't rule out the possibility of rotating the two early in the game.