'Grimm' season 6 updates and spoilers: Series to have 13 episodes, David Guintoli thinks that it might be the show's final season

Promo still from "Grimm" season 5 episode 21 "The Beginning of the End, Part I." | Photo by: Scott Green/NBC

Police procedural TV series "Grimm" recently ended its fifth season with a lot of loose ends, and fans can only wish that season 6 is just around the corner.

The show's upcoming season 6 will have a trimmed order of 13 episodes only, compared to its usual 22 episodes. As noted by Deadline, NBC decided to give the series a reduced number of episodes in order to have more flexibility in planning its fall 2016 schedule. As of the moment, the execs are working on how they will construct a storyline given the shorter episode order. "We're assured of 13, which is more than half the season," executive producer David Greenwalt told TV Line. "There may or may not be more episodes. It may or may not be the last season. These are things we don't yet know. We're certainly thinking of arcs for next year, and then [the episode order] will determine how long it takes to do that."

As for what fans should expect once the show returns, there won't be any time jump since a lot of questions still need to be answered. The storyline of Nick and Adalind's relationship will probably be explored further next season, specially since Juliette is a potential threat to them and Diana's presence might also negatively affect Nick. Meanwhile, Renard will be the new villain after Bonaparte died.

In an interview with TV Insider, actor David Giuntoli mentioned that this might be the last season of the series. "I would imagine this will be our last season," he said. "In network TV, six seasons seems to be what hit shows generally run. We've also heard we might do two more shortened seasons. But either way, we're getting to the end. Nothing lasts forever. But here's the exciting thing about that: Our writers will be able to give us a really cool ending. 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."

The network has yet to announce an official release date for "Grimm" season 6.