So after seeing the official plans today, I guess I'll put in my two cents.
#7 seems fine to me. They can always move the tee up if it plays too long. I think they key will be making sure the green is severe enough given that it will only be two tiers. I like the plans to regrade the right rough and add a bunker short-left (you won't want to be there!).
#8 I guess I'm not convinced yet but maybe I will be. I think #8 right now is a really distinctive and cool hole. The added length and the new orientation seem fine, but the new green and bunkers seem pretty standard, although admittedly it's tough to tell. I wonder what the visual will be like from the tee. I don't even know why I think the current version is so cool, but I do, and I hope the new hole stands out in the same way.
#15 New green? Sure, why not.
#18 Ditto. Sounds good to me.
And as for redoing the greens in general, I'm sure they can keep them bent if they want to through the 2012 Open. After that, if every other course on the west coast is any indication, they'll eventually end up being poa annua again, right? If they can keep the poa annua out then it will be a heck of an investment. That's for sure.