honestly, i would prefer if GSB stayed in the 2d isometric view. this may seem contradicting as i make 3d models, but doing it in 2d clears up alot of problems. the main one being that its easy to mod.
it also means that anyone can play the game, regardless of how sucky their current gaming station is (my old computer was basicly a toaster hooked up to a fat screen and a calculator as keyboard and it plays gsb without any issues)
and since Cliff is an indie developer, he needs as many customers as possible to pay the bills. it wouldnt make sense to limit those to people with only high end systems.
2d means that he can make an amazing looking game with only a third of the computer power.