If i were him i will definitely not come out. I wouldn't care about the fame and all. My life is more valuable. The world is such a shitty olace where people will do so much just to maintain their status. Greed is the main reason. Just like great inventors who invented great things that posted as a threat to big businesses. They were all threatened while others were killed.  If he comes out, he will surely die. Judging by how much the governments and banks hate bitcoins. I don't think satoshi will be able to celebrate his fame for long.