It will be interesting to see how this turns out in the end. I do think that converting/ remaking the game into a full 3D game (so no 2.5 D) isn't the smartest thing to do in terms of gamedesign. Especially with indoor environments and the way the oddworld gameplay works. The outdoor environment on the other hand seem to work perfectly as it gives a more believable environment in terms of layout and function. (Epic work on that stuff btw
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If your going for a full 3D game 3rd person game it might be interesting to move away from an exact core layout replica. And try to go for something more in line of the original Munch oddysee footage (the ps2 stuff).