The Giants have won the World Series, their sixth trophy since the first Series played in 1903. Will the Giants come out with new uniforms as a result in 2011? Well, after they won their first WS in 1905, the Giants made a change in their 1906 uniforms. John McGraw thought it necessary to show everybody who they were playing. So, they promptly removed the traditional "NY" from their jerseys and replaced it with the identifier of "WORLD'S CHAMPIONS." To see the transition, click here. For a closeup of the '06 threads, click here. These come from a great section of the Hall of Fame website, called "Dressed to the Nines," detailing the uniforms for every team in history.
I'm not expecting a big change to their already classic uni's. But just think how such a thing would go over today.