The hit NBC sitcom will reach its conclusion in the next season - but will Willis show up? The fans certainly want him to.
In an earlier statement, executive producer Dan Goor wrote, "The way I see it, if this is to be our last ride then let us go out in a blaze of glory."
Even Dan Goor - who co-created the show with Michael Schur - called for the cameo, opening up on an 'ask me anything' Q&A on Reddit.
Responding to the question 'who would you have liked to have been the guest star in this new season and why?', Goor replied, 'Bruce Willis for obvious reasons.'
For those of you who aren't au fait with the show, these reasons may not seem so obvious.
Basically the comedy's main character, Detective Jake Peralta, is obsessed with John McClane, Willis' character in the famous Die Hard series.
All you have to do is watch the trailer for the latest series - which features Peralta leaping from an exploding building and grabbing hold of a passing chopper - to get a sense of the action movie's influence on the show.
So it seems the ball is very much in Willis' court with regards to a potential cameo. Of course, the fans want it to happen, and now it seems the creators are up for it too.
Many have been speculating over how the show will end in its eighth season, but viewers are united in wanting Willis to make an appearance.
For the uninitiated, Andy Samberg's Jake Peralta is obsessed with Die Hard - so much so, he's cited it as his reason for joining the force - and Willis's iconic John McClane is his hero.
It's been a running joke since the show began, even directly parodying the movie in its Yippie Kayak episode.
One user wrote: "Imma be real mad if they don't get Bruce Willis at least for the last season of Brooklyn Nine-Nine. My man Jake deserves an episode with his idol."
Another tweeted, "Please Bruce Willis, you gotta be in the ending of #Brooklyn99 !!!!! It has to be epic!!!! Make it happen!!"
Samberg has even discussed the prospect of getting him on the show, earlier telling Jimmy Fallon:
"My character is obsessed with Die Hard, so we've long said that getting Bruce Willy would be like a huge thing.
"I mean, I've appealed many times for this, I think maybe he's like waiting for the end to surprise us and shock the world, or, he hates me. I love him."
Willis clearly isn't opposed to poking fun at himself, having reprised the role late last year for a car battery advert.
Will he do the fans a service and turn up on Brooklyn Nine-Nine? Time will tell...Featured Image Credit: 20th Century Fox