I do think if N:ST was to open again (this year, next year, whenever) it will not have actors in. We have seen what's happened with attractions that require actors (Saw Alive, I'm a Celebrity) and how quickly they are turned into seasonal attractions. I know that this isn't a dedicated maze unlike the previous ones stated but it would require actors for the full part of the season.
If it is opened again, It think it would rely on lighting, sound effects and maybe some theming elements to add to the finale of the ride to show the aftermath of the attack. Just something to not make it as plain as it was before the Maze was added. The only actors I could see are the ride hosts which we already have who check the restraints and guide you to the next point.
Again, I don't think it will be a fully actor dedicated attraction but will add something to compensate for the lack of actors