The makeup techniques and principles used for LOTR have pretty much been around (and relatively unchanged) for decades, I doubt anything has changed dramatically in the past 4 years. And I tend to agree with pixle on this one--- if new blood is warranted, I think it should be embraced. Not that I don't love the LOTR cast!
Yeah Andy, unless you go digital the only other option still involves gluing and painting appliances on the actor's skin. Maybe JRD had a reaction to a certain glue they were using or just hated the claustrophobic feeling of the wig, makeup, etc.
I bet Andy Serkis will play Smaug & I hope they'll make Smaug look a little more human and less reptilian. I really liked how Smaug looked in the animated movie, a bit wolfish with wings attached to his arms and not as separate appendages. No dragon movie has surpassed the look of Vermithrax from Dragonslayer IMO. I just hope the Hobbit movie version has as much personality as the animated Smaug, seeing Serkis as the great worm would do that.