I am glad somebody else has posted this! I was looking into getting The Predator, but I rarely use my Rifle. I usually use my Flamethrower, but realized I would never see anything special with the kit; which ultimately would change my mind about getting one at all for my Engineer.
There are tons of options here for interesting looks and special skins specifically for people who have a Legendary on an engineer.
Hope to see some changes since I love the class!