To us, it is less of an issue of the old property being "stale" and more of a tribute to how much hype is surrounding the development of the Comcast Center. Our guess is that Comcast courted a first-class hotel to even further solidify it as one of the city's premier buildings. As we mentioned, it is going to be the tallest building in Philadelphia, and the tallest in the United States outside New York and Chicago. You can read more about it here.
So now for the next logical question: What's going to become of the Four Seasons current location after the move? Our sources tell us that another hotel will most likely move in, and rumors have it that it will become a Marriott. We'll continue to monitor the whispers we hear and pass on more information when it becomes available.
For the time being, it's "business as usual" at the Four Seasons, as the move won't take place until 2017. Which means you still have a chance to check out that epic view.