'Grimm' Season 6 spoilers, air date: Juliette troubles Nick and Adalind's relationship; Renard becomes the antagonist?

Season 5 of "Grimm" ended with a lot of questions unanswered and fans are eagerly looking forward to Season 6 of the series to find about them.

Season 5 concluded with Nick (David Giuntoli) contacting Eve through the Stick and during the process, getting a glimpse of his ex-girlfriend Juliette Silverton (Bitsie Tulloch). The next season will showcase Eve transforming back into Juliette that might affect the relationship between Nick and Adalind (Claire Coffee).

Eve has been playing an antagonist for a long time in the series and now that she is about to return as her better self, fans are anxious about the fate of Nick and Adalind. Giuntoli also said that the new situation will be confusing, even for Nick.

In an interview with TV Insider, he said: "It's all too much for Nick to take in. We have time to wrap it up in a wonderful, perfect way, for all of our characters. We will go out big and we will go out strong."

Giuntoli's statement hints at Season 6 being the series' finale season. However, for now, it hasn't been confirmed officially. Also, it seems that Juliette's return will make Nick's already complicated life more complex.

In the meantime, one of the Twitter post by Tulloch stated that the writers started working on the next season in the beginning of June. Now, it will be up to them to decide whether Renard (Sasha Roiz) will join back Nick or will continue to travel down the dark path.

Talking to Entertainment Weekly, Giuntoli said that the Black Claw is no more and said that Renard will find it hard to convince the others that he is no more against them, given that he decided to return.

"Now it's Renard versus Nick. I think," Giuntoli said.

"Grimm" Season 6 will premiere this fall on NBC.