Come on man, this is a no brainer. Some guy, most likely an academic, is poised to become the richest man in the world. Im not talking about his current evaluation, im talking about the long term price levels that bitcoin can achieve once we actually innovate, and not this bullshit borne of pure speculation (which is correcting). I digress.
So if you were that guy, what really would be the advantage of letting everyone know that you are? Seems to me if=t would only make you a target; people would be able to attack you as a person and undermine bitcoin. Suppose he had a rocky start; would you want to see a headline saying "Bitcoin Creator Accused of Sexually Harassing 16 Year Olds At Age 32?" (see what I did there?)
It better for this, until adoption is complete/extremely widespread, that we remain a bit mysterious as far as Satoshi. I think he realizes this, so we most likely wont hear from him.
And ignre all those that would claim to be him. That would be the dumbest move in the world, atm.