Hope they keep that design but chances are they wont, since they keep redesigning stuff in each sequels.
Also the design was kinda stolen in CONTACT, kinda because its the same designer who did both Steve Burg.
He is the one who designed all the future war scene that was ultimatly not shot, showing skynet, its interiors, the t800 cryo chambers.
Just by looking at the storyboards, terminators driving trucks and Guarding laser gates you realise that they dont have the slightest vision for this.
Just look at the cool armors connor and son are wearing. Gone the guérilla feel you get from the two original movies.