There’s been a bunch of “original” robot rampage movies. Just the rest weren’t named Terminator because they were different movies, so what are you asking?

The first movie would still be great looking and awesome if they would fix the stop motion of the robot, which at this point is actually pretty cheap and easy to do, but there’s no money to be made that route. If you want a “Terminator” movie, the only option is a remake of the original. The sequels and spin offs and shows past T2 all kinda sucked, and it’s been 40 years. It wouldn’t be the worst thing to remake. Just sucks that Arnold couldn’t be the t-1000 now unless they go all ai/cgi on it, which I really hope Arnold would be absolutely against.