Art change?

One of my friends has got it in my head that I should use sprites in the remake, meaning all the areas, dungeons, objects, and bosses are 3d models, while all the characters and normal enemies are 2d sprites (he described it as along the lines of Ragnarok Online. This would vastly speed up production (and the sprites could be enhanced, like Street Fighter 2 HD Remix) but I would rather let you, the readers (the ones who will actually be playing the game) decide.

So, all 3d models, or 3d world, bosses, objects with 2d characters and items?