Here's some scenarios assuming the Bengals aren't in the race.
#1: Ravens: W,W,L,W,L,W (9-7) Steelers: W,W,L,L,W,W (9-7) Ravens win the division
#2: Ravens: W,W,L,W,L,L (8-8) Steelers: L,W,L,L,W,W (8-8) Ravens win the division
#3: Ravens: W,W,L,W,L,L (8-8) Steelers: L,L,L,W,W,W (8-8) Steelers win the division
#4: Ravens: W,W,L,L,W,L (8-8) Steelers: L,W,L,W,L,W (8-8) Ravens win the division
#5: Ravens: W,W,L,L,W,W (9-7) Steelers: L,W,W,W,L,W (9-7) Ravens win the division
#6: Ravens: W,W,L,W,L,W (9-7) Steelers: L,W,L,W,W,W (9-7) Ravens win the division
#7: Ravens: W,W,L,W,L,W (9-7) Steelers: W,L,L,W,W,W (9-7) Steelers win the division
#8: Ravens: W,W,L,W,L,W (9-7) Steelers: L,L,W,W,W,W (9-7) Steelers win the division
#9: Ravens: W,W,L,L,L,W (8-8) Steelers: L,L,L,WW,W (8-8) Ravens win the division
#10: Ravens: W,W,L,W,W,L (9-7) Steelers: L,W,W,W,L,W (9-7) Ravens win the division
#11: Ravens: W,W,L,W,L,W (9-7) Steelers: L,W,W,L,W,W (9-7) Ravens win the division
#12: Ravens: W,W,L,W,L,W (9-7) Steelers: W,L,W,L,W,W (9-7) Ravens win the division
Which one of these is most likely? No idea. These aren't all of the possibilities either.