I don't really think he will come back because Satoshi
Nakamoto was just an identity used to hide the real
founder's identity thus if there exists any satoshi
Nakamoto there is a doubt about that too..also he hasn't
shown up until now thus its impossible that he will now
show up.
Well it for sure would be very interesting if something like
that happened but its clearly impossible.
yes it is quite possible that this person was not hiding behind a person but a whole team of people)