Bednarek, ABK and JWP are unlikely to be here next season. I'd hazard a guess that Tino won't hang around beyond the January window if he's back to fitness and form.
Of our current CB's it's likely Stephens will stay, but I can see the others going. I can see that front 4 sticking around though, and I'd imagine they'll do well, although I'm far from convinced that there's anything more to Edozie than a few tricks and runs down blind alleys.