In a new interview, Fringe showrunners Joel Wyman and Jeff Pinkner talk about season 4 and what’s coming up! Beware of spoilers.

In the interview with Give Me My Remote, the execs talk about the big Astrid episode last Friday, and Joel Wyman explains how it’ll impact the Astrids going forward:

I think emotionally, it’s going to affect Astrid over here because she realizes the situation she’s in in her life is actually really, really good. Jeff and I use it as a mirror to highlight a bit of the theme of what impact do you have on others and what impact do others have on you? I think that basically, her seeing the alternate version of herself and the deviation of that version of fate and destiny really opens up her eyes to how great her own existence is and she’s really appreciative of everything that she’s experiencing. And it’ll be very emotional.

They also promise that it’ll become clear whether Peter is in the right timeline, or whether his Olivia and Walter are somewhere else wondering where he went. Pinkner says:

Certainly, Peter is under the belief and his drive has been — he is under the belief that his timeline exists and he’s trying to get back to it. Now, the idea of the timeline, it’s not the same as a [new] universe, but it’s sort of synonymous. Peter’s drive is to get back to the timeline that he left. We can tell you with great confidence and assurity and honesty that we will be tracking the story from Peter’s point of view. We’re not going to be flashing to a timeline unless it’s with Peter.

They also talk about the infamous episode 19 of the season, teasing:

We can’t really tell you what it is because we never say what they are, but usually spot 19 is reserved for something that’s a little off the beaten path, that thematically will represent what we’re doing. What sort of speaks to the thematic elements that we’re involved in and the characters are involved in. It will be entertaining for the viewer to say, oh, it’s a little respite from our regular storytelling that goes off into an area that will teach you something new, but isn’t necessarily in the narrative we’ve been following. And I think we can say that this year will be no different. It’s hard [to say more], we can’t spoil that because that’s our little fun time. When the cartoon came on [last season], everyone like, “Oh my God!” We don’t want to reduce that impact.

Read the full interview at Give Me My Remote!