UPDATE 12/21/16: All of the images have been replaced with HQ versions (at least 3000×1690). Click on a photo to see the full size.
F2N has released the first pictures from Degrassi: Next Class Season 3…everything from the group photo (above), to gallery pics and a few episode stills:
Season 3 Character Pics
Season 3 Episode Stills, Etc.