I firmly believe that Satoshi (whether it be a single person or a group of people) had planned to never reveal their identity form the very beginning.  It only makes sense if you think about it.  In order for bitcoin to be the currency of the people, they needed it to not have a central figure behind everything.  By not having a main person, or CEO or whatever you'd want to call it, it helped prove that this is a decentralized currency not controlled by any one person.