I believe that satoshi nakamoto has a lot of bitcoin, and I still believe that satoshi nakamoto is alive and certainly satoshi nakamoto will keep the future progress of bitcoin.
But we do not know for sure if he is really alive and well in this world with a lot of Bitcoin in his hand. All he has left is the addresses that as far as I know is untouched and we do not know who owns them now. I think if Satoshi Nakamoto owned that adresses, and he is still alive I guess he will be using it.