Now here’s some monkey’s paw shit for you. The Stargate TV franchise went off the air two years and immediately fans started demanding more of it, with many hoping for a new theatrical film (like Buffy, the original film the series spun-off from is largely ignored). It appears that a new Stargate trilogy is now in development but it will be a rebooted take on the 1994 movie and will have no connection whatsoever to the TV franchise.
Roland Emmerich, who directed and co-wrote the original film is heading up this new take, but won’t be writing it.
“We went to MGM, who has the rights, and proposed to them to do a sequel, but as a reboot… and reboot it as a movie and then do three parts. Pretty soon we’ll have to look for a writer and start.”
As to why it’s not in the same continuity as the TV series, Emmerich has never exactly been quiet about his belief that SG-1 isn’t what he considers to a be a canon continuation of his film. Perhaps this is his chance to tell the story he wanted to tell back in the 90s.