One of our primary aims with this remaster is to create a version of the gameplay which matches the FMV as closely as possible. This means creating new models based on the FMV. That said it is fairly standard practice for these kinds of projects to offer a classic mode where you can play the game unaltered.
Likewise when the remaster is eventually released you will be able to switch between Defiance Industries' beautiful models and the originals (which are still impressively highly detailed given their age) with a single button press. This of course applies to room images as well as models.