Well, the on-ride photo section in MF's 2nd tunnel looks like a strobe light, but there is no fog in the tunnels. I agree that fog and strobies in the tunnels would be cool, but frankly you zip through the 1st tunnel so fast you'd hardly notice the strobe, and the on-ride photo is hard to catch in the second tunnel as well.
I was looking at the pictures of MF on the official site yesterday, and I thought that another bunny hill could be added on the straight-away before the last over-banked turn. But I think they made it a straight-away was to add the freak-out effect to people standing in line, since the trains fly by so fast.