WK has announced a huge event for this summer, in which they will release a brand new Galactus figure (commonly referred to as Galactus 2.0) along with four of his heralds, one of which is already confirmed as the Silver Surfer. There is no doubt that this is in anticipation of the new Fantastic Four movie, Rise of the Silver Surfer, which is the only reason we're getting a new SS (since we just got an awesome one in Supernova).
As soon as I get more info on this be sure I'll be putting it here.