This tread made me think about it, and I got really impressed with the kind of experience DW would turn if it was in 3d. take a look at SHIII:, those explosions, the water, the crew around you. even if it would be a little more boring (because modern subs usually don't face close combats, and depth charges to shake its hull), I would really like it.
I like the way DW, is now, but I think that 3d would add a new world to the development of modern sub games.