I was concerned with the interviewer claiming the showrunner was embracing the horror vibe of the first two films, since the second film is far from horror (making me question the judgment and sense of this guy), but it seems as if that was not actually said by the showrunner.
I'm not going to get super excited about anything like this. History has shown that the most likely outcome is something disappointing and a slap in the face of the original. But you never know. If a Blade Runner sequel can work 40-odd years later, then anything is possible. I certainly don't see guns as essential to telling a good Terminator story.