From slashfilm, According to a report over atMoviehole, the story will reportedly be akin to the back half of "Back to the Future Part II" in that we'll return to and revisit some of the more iconic moments from the first two "Terminator" films.
As this plays with time and alternate timelines though, don't expect events to unfold in the same way. The report says the action will jump between the future, 1984, 1991 and other influential time periods in the life of the Connor family.
This will include everything from the Terminator attacking some punks in the opening scenes of the first, to the death of John Connor's foster parents in the second. In fact, the report claims that many of the supporting characters like the detective from the first film and Sarah's roommate Ginger are all a part of it. As are scenes we've not seen before such as young Sarah and her parents.
If true, it's certainly an ambitious idea with a lot of scope to it - but also a lot of potential downside if it doesn't quite click. Head over to Moviehole for the full report.