Bitcoin has its fair share of mysteries; exactly how it works being one that most users will never understand.
people don't understand how 90% of the world works starting from the coffee maker they use in the morning to the bed springs they sleep on at night. that doesn't make any of them "mysterious".
GotSatoshi website and Twitter feed is promising a live reveal at 15:50 GMT on May 14th. So not long to wait and find out then.
if they had any clues whatsoever they would have revealed it right away instead of advertising it for a couple of weeks and increase the drama. that is just one more nonsense to the millions of cases that existed in the past 10 years.