I think he or she will, something in my heart tells me they are still alive. I don`t think they will reveal their location or who they are, but I do think they will post on this forum in the next 5 years. It is only a matter of time before some big big rogue miners or bitcoin devs do something he or she do not like or see`s a problem with and they will have to come back and have a voice in the matter.
It will probably start by him or her saying something like this.
"Keep using the longest chain" or maybe "use this chain instead from now on"
I did a poll earlier a few months ago I think 19 out of 20 people said they would use whatever satoshi said.
We don`t really know the future. Maybe, Satoshi will soon proclaim that he is the founder of king bitcoin but maybe not. I am thinking that he has plan why he kept on secreting his identity. Many people want him to back and post here yet, we don`t know if he is alive. Anyway, I want also to see the real Satoshi Nakamoto soon because without him/them, we don`t have opportunities and money right now. Crypto gives a lot of open doors to the people and Satoshi must be acknowledged by that.