I think it is safe for the inventor of Bitcoin to remain anonymous, and Satoshi has done many things to remain anonymous and to preserve his privacy, he did not reveal the real name, and he chose a Japanese nickname and a pseudonym called "Satoshi Nakamoto". It is also believed that Satoshi was using a Virtual Private Network (VPN), or Tor. Nakamoto previously talked about Tor and told people that it is a good way to hide the origin of a Bitcoin transaction.
I think that's the only way because the other options have been already foreseen and not any them are pretty good for the market. Plus it's a really good thing that he is anonymous because with the enigma behind the identity, people gets curious about the identity. Tor and VPN isn't enough to hide someone's identity, I think Satoshi is also a Linux User because he is pretty good with codes.