A bit of fur would certainly work. I doubt they will give him a realistic appearance, though. I fear he might be just another sleek, soapy, bodybuiler-type superhero. Are any script details out yet? Will it be a contemporary setting, or a Viking setting? I've not read the comic books, actually. I do recall that Thor met the Hulk once, in a Hulk comic. If they do Thor in present day, I hope it will be better than Dolph Lundgren's Masters of the Universe which lost all that was fun about it when they jumped from their world to our world.