Here is what Uni Watch's Paul Lukas had to say about the new Nike uniforms for each of the AFC North teams. You can click here to get a breakdown for the entire league.
BENGALS: The two-tone collar actually works for this team, because it plays into the uniform's overall stripey-ness. ... Pants striping now wraps around more toward the front, which I think is actually an improvement.
BROWNS: Essentially unchanged. ... Somewhere in the Nike offices, there's probably an exec whose sole job is to convince the Browns to adopt a helmet logo.
RAVENS: Hip logo appears to be lower than before.
STEELERS: Essentially unchanged. ... 80th-anniversary logo, unveiled earlier this week, does not appear as a jersey patch. Maybe it'll be added later..? ... Helmet on mannequin did not have a front uni number, à la the team's preseason look. I assume this was just an oversight, not design change.