Consider season 5 ofChicago P.D.something of a rebuilding year.

WithChicago Justiceout of the picture, Jon Seda’s Antonio Dawson will be back on the team.

And that’s just onscreen.

ENTERTAINMENT WEEKLY: I imagine Sophia Bush’s exit created a pretty significant shift in the series.

Are we going to see a little bit more aftermath of Erin Lindsay’s departure?

Back in May, there was some talk about her coming back and wrapping up some stories.

Are there any plans for that?

It’s too early to tell.

I’m not sure about that.

Is there a central theme for this season?

We’ll feel that our detectives are in that world.

There’s reform, the federal government is sort of helping them do their jobs, so to speak.

So there’s a lot going on there that makes for interesting television, hopefully.

Are we going to see some of that reform and how it affects Voight especially?

I think he’s trying to work through some things in the early part of the season.

Towards the end of the season, it’s possible, yes.

But I think he’s trying to make sense of what’s happened.

But there’ll be romance.

In the finale, Burgess was on leave as Marina Squerciati welcomed her first child.

She is coming out of the box in episode 1.

She’s going to be back in the saddle.

Speaking of the saddle, what’s the current state of her and Ruzek?

I think they both have strong feelings for each other and there’s still some lingering romantic tension there.

Is Upton going to get in there and cause a little romantic drama?

We don’t know her very well… How is Jon Seda going to re-enter the fold?

You’ll see him in the premiere.

You’ve got the 100th episode coming this season, though not for a while yet.

Have you started to think about that?

We’ll do our best to make that a special episode.

I mean, not for Dick [Wolf] he seems to have them all the time!

Chicago P.D.returns Tuesday, Sept. 27 at 10 p.m.