As good as this course looks now, I get cold chills when I think about how good it will look with 3-D rough!
I can't say I share quite the same enthusiasm for the addition of 3D grass to the game as you do. While I think it will add an impressive look to the game I also think that the photo-realism of courses will suffer because of it. I don't believe that 3D grass will allow us to create the same subtle effects that 2D textures do and I believe that courses will look a little less realistic and a little more 'video gamey' when it is introduced, much like 3D in TW08 did, compared to Links 2003.
TGC's grass looks more impressive than JNPG's, yes.... but I still prefer the realistic look of JNPG's courses over TGC's, and find them more immersive, even with their cruder 2D textures.