So far, Fringe fans might have been scratching their heads slightly, wondering what exactly is so different about this new universe without Peter, aside from Astrid being in the field. But Jasika Nicole teases some bigger changes we haven’t yet seen, and we also hear a bit about Nina Sharp’s reappearance!

Speaking to TV Guide, Jasika Nicole explains that there are differences still to be revealed:

It’s not like Peter came into their lives and then everything after that is different from what we’ve seen. [But] there are things that are different from even before then that you will discover in a future episode. [The episode ‘Jacksonville’ is] something that happened before Peter was around, but think about if Peter was never there, even that flashback episode we did last season, that never would’ve happened. The changes are in an even bigger arc than it seems initially.

TV Line also has some information about differences, specifically Nina Sharp’s relationship with Olivia:

[Nina is] back this Friday, and she’s bringing a plot twist with her. According to Anna Torv, in this new reality sans Peter, Nina plays a surprising role in Olivia’s life. “There’s some interesting stuff coming up in the next episode with that,” she hints.

What do you think this could be?