I don't even know how to write this without spoiling it. So come with me if you want to be relentlessly spoiled about the insane twist of Terminator: Genisys.
Surprise! John Connor, the savior of humanity, is actually the bad guy in this new movie. I know this because the trailer tells us this, and a whole lot more. From the first few seconds of the new Terminator: Genisys trailer you know that things are screwy. For starters, Kyle Reese is seen going back in time to 1982 (as was done in the original Terminator movie) but things are different; Sarah Connor is aware of his mission and is the now adopted daughter to the Terminator (it's weird, I know). The next scene shows a seemingly 1984 Sarah Connor talking to a not-yet-teenaged 1994 John Connor, which means they time travel forward a few years. But wait, there's more! Flash-forward again and we're met with a well-suited (but still scarred) John Connor who is actually (wait for it....) A NEW TERMINATOR.
So he's the new Terminator that was revealed a few weeks ago?! Yep. Honestly, I'm pretty gobsmacked that this kind of plot twist is being revealed in the trailers. But there in lies the premise — Sarah Connor and Kyle Reese are going to have to fight against their own kid. It's very strange, but it's also an aggressive take on a time-traveling franchise that could pan out. It probably would have been more exciting to learn this reveal in the theater, but oh well.
It really looks like Terminator: Genisys is attempting to do something different by practically erasing the Terminator franchise entirely. Honestly, I don't know if it will work. But it can't possibly be as disappointing as Terminator: Salvation, and you kind of have to admire their moxie for saying, "Screw it, the Terminator will now be called 'Pops' by Sarah Connor." I still deeply loathe the Daddy Terminator plot line, but evil John Connor is fascinating. That's uncharted territory, and interesting.