This will be the sixth film in the Terminator series, but for James Cameron, it will be a direct sequel to Terminator 2: Judgment Day (1991), which will completely disregard the three films in which Cameron wasn't involved: Terminator 3: Rise of the Machines (2003), Terminator Salvation (2009) and Terminator Genisys (2015), of which it will come out four years after. Also, the film appears to be a reboot of a reboot. Terminator Genisys (2015) was a reboot of The Terminator (1984) and the first installment of a trilogy of new Terminator movies. This last movie ended up making $440.6 million at the Box Office and was given poor reviews by critics and instead, the two planned sequels, were abandoned by Paramount Pictures. Additionally, this movie will also be one that will come out 18 years after the latter, Judgment Day.
The film will be released 35 years after The Terminator (1984). Incidentally, in Terminator 2: Judgement Day (1991), The Terminator (Arnold Schwarzenegger) tells John Connor (Edward Furlong) that he is from 35 years in the future. In both the 1st and the 2nd movie, it was established The Terminator comes from the year 2029. Terminator: Dark Fate is released in 2019, a decade before John sent back Kyle Reese and The Terminator to protect Sarah and himself from the Skynet Terminator and the T-1000.
Mackenzie Davis previously starred in another science fiction movie which was also a sequel to a classic 1980s science fiction movie - Blade Runner 2049 (2017) which was the long awaited sequel to Blade Runner (1982) a film about a man whom hunts down and terminates rogue synthetic humanoids.
Casting agents were looking for an eighteen-year-old Mexican girl to play the role of the female protagonist, Dani Ramos. Natalia Reyes was cast as Dani, though she is actually Colombian and was 31 at that time she was cast.
The poster of the movie which Sarah Connor is seen walking across the highway is influenced by the poster of the movie Logan (2017). That movie took place in the year 2029. 2029 was the year John Connor sent Kyle Reese and the T-101 back through time to protect Sarah from the T-800 and himself from the T1000.
Despite rumors that Michael Biehn would be reprising his role as Kyle Reese from The Terminator and the uncut version of Terminator 2: Judgment Day, Biehn confirmed in an interview that he will not be in the film.