Warning: This post contains spoilers from the season 4 finale ofRiverdale.

(Spoiler: They still don’t know.)

EW spoke withRiverdaleshowrunner Roberto Aguirre-Sacasa about the finale and what the shortened season will mean for next year.

Riverdale

Credit: Kailey Schwerman/The CW

But this episode does end on a cliffhanger, so in that way it works.

What was your reaction to episode 19 having to serve as your season finale?

So we kind of just couldn’t do that.

And it does end on a pretty shocking, disturbing cliffhanger.

So it worked out in kind of the best way possible given everything.

Obviously we would have loved to have finished the full season, and the last three episodes are fantastic.

But to me, this one is fun.

It’s a special conceit and it brings everyone together, which I think people love.

I mean big, big, big changes happen.

We are continuing the mystery and the relationship drama straight into season 5.

And have we seen the last of it?

She did keep a diary!

She did keep one of her diaries.

He’d been at Stonewall while Betty had been at Riverdale High.

And I think they also were feeling like maybe their lives were going in different directions.

Even though it was a variety show, it just felt right to pick up that thread.

We had just done the story where Betty and Archie had pretended to be together.

It felt organic to what we were doing.

The relationship drama will always be one of the driving forces of the show.

Marisol Nichols and Skeet Ulrich had announced thatthey’d leave at the end of season 4.

Have there been conversations about having them come back for season five to film a goodbye?

And both of them were like, “Of course, let’s do it.”

And again, neither Hermione nor F.P., this isn’t a spoiler, but they’re not dying.

My hope is to have them be a part ofRiverdalefor as long asRiverdalecontinues.

I think it’s graduation.

I’m really proud of the last episode.

Actually, the last two.

The prom is really classicRiverdale.

It’s such a rite of passage.

So many graduations were canceled this year.

I really, really loved that episode.

So I’m looking forward to doing it at some point.