Well asuming that thats true(because it very well might be a rumor) it really could be any thing but it probably has to do with rambaldi and his profecy and mabey vaughns secret has to do with rambaldi.
I really don't know what to think of the title. I really shouldn't think to much into it since it might not even be true. But if it is, it has to do with Vaughn. I can't wait till season 5 starts .