I doubt it. There are many better sportswriting websites than Grantland that have either gone under, restructured, or simply been open about the fact that they don't make any money largely because they don't have the visibility of an ESPN product.
I don't read Grantland very often because overall it feels very Huffington Post (with sports!) to me, but it's certainly a step in the right direction. The problem is that there isn't a great feeder system from reading Grantland or some of the SBN blogs to places akin to (the late, lamented) Sports on Earth, and the like.