One of the things I like about Pathfinder is the work they've put into making races and classes distinct and interesting. Even a class as basic as the Fighter has gained abilities so he isn't just a walking stack of feats any more.
One of the big achievements with the Rise of the Runelords adventure path - the first one Paizo produced - was the work they put into making Goblins interesting. Even without the illustrations of Wayne England, the Ten Fun Facts About Goblins piece in the introduction to the first module, along with how Goblins are handled during the encounters in that module really change how you'll approach the standard lesser greenskin.
With that in mind, and following some jokes and discussions with my Saturday group, I thought it'd be interesting to see what a Goblin would look like if it was infected with lycanthropy. This would probably not be from a bite, but if something like a barghest wanted to influence a Goblin tribe, giving their leader the ability to turn into a wolf would go a long way. Goblins admire and trust wolves, and would likely see such an ability as a blessing from whichever dark god they were worshipping.