Evan,
I'm just guessing, but I doubt they'll grow the rough up near the greens. Feedback (other than John Daly on #8) seemed to be positive about the various options allowed around the greens.
I agree with you about the narrow fairways. The course is going to look a little like ANGC in that you have these huge areas between the pines, which is how the course is supposed to play, and the fairways will look like landing strips. The other sad part is that some of the fairway bunkering will now be over in the rough and somewhat out of play (1, 2, 11, 13, 14).