It really shouldn't have worked; a comedy about a group of washed-up actors from a cult sci-fi TV series who became involved in an actual space adventure when a group of aliens mistook their TV show for real events. There were a million ways which GALAXY QUEST could have gone wrong, but miraculously, the film found success with its equal measures of comedy, action, and heart, not to mention its stellar cast consisting of Tim Allen, Sigourney Weaver, Alan Rickman, Tony Shalhoub, Sam Rockwell, Daryl Mitchell, and more.
There had been rumblings of a GALAXY QUEST sequel for quite some time, but the project transformed into a TV series which was being developed for Amazon. Unfortunately, the tragic passing of Alan Rickman took the wind out of everyone's sails and it seemed as though the project was scrapped. While speaking with Collider, GALAXY QUEST director Dean Parisot spilled a few plot details about the potential series.
It was finding these guys, they’re even more pathetic because it’s 15 years or 20 years later. Tim Allen’s character lets it go that he really went to outer space and have been mocked ever since, they lost their TV show and they’re even more of a disaster. It was a great opening because they were asked to go to Comic Con and they think it’s because they’re going to reinvigorate the series but instead they’re going to hand it off to a younger group of actors. So Jason Nesmeth [Allen’s character] gets in a horrible fistfight on stage and it went from there.
The GALAXY QUEST series would have consisted of ten-episodes that served as one long movie, and Parisot said that they were very close to getting started. "We had a deal with Amazon," Parisot said. "We were getting notes. There was a script. We had everybody on board." Although there's a chance that the series could still move forward, Parisot said that the loss of Alan Rickman took the wind out of everyone's sails. "We couldn’t go forward after that because we loved Alan," Parisot said, "who was the sweetest, most generous person on the planet. We just couldn’t see it without him. We’re still talking about it all the time. Who knows." While I would have loved to have seen the gang get together one more time, I do think they should let the series rest.