Satoshi has its own purpose and I believe thats what the bitcoin community needed for now, not to reveal Satoshis identity which brings even more good to bitcoin. And I guess if he also decides to disclose his identity all of a sudden, probably it will not also make a difference.
If Satoshi disclosed gis identity, there could be some difference like people knowing his country, religion and the likes. Some people may start to conclude that bitcoin is becoming to be slightly centralized le centralized like altcoins. But as people do not know about Satoshi, it makes it more decentralized from the beginning while others developers also want to keep it like this.