I find it unthinkable for people who wants to remain anonymous to have a public presence for decades... Peter Todd, Adam Back etc...
Perhaps if from the early days of bitcoin people had bothered to reveal Nakamoto's identity they would have found out who he really is. But we're talking about a very small community that didn't get attention in the early days. Today I find it unlikely that the real identity will be found and everything I read is speculation without proof.