Assuming that Satoshi remains anonymous. It is entirely possible that he could out himself at some point in the future, or be outed by friends/family/collegues

Assuming that Satoshi remains anonymous. It is entirely possible that he could out himself at some point in the future, or be outed by friends/family/collegues after he died (or before). Theres also the speculation that Satoshi is not an individual, but rather a government or organization. In this case, there are almost defiantly written records of 'who' he is. Or it might end up truly being lost to history.