One of the reason for high trust on bitcoin is that the bitcoin owner Satoshi identity is hidden. If all of sudden Satoshi come in the public and his identity is revealed, do you think it will have a bad impact on the bitcoin price and it can dump? Or do you think that bitcoin price will pump on this revelation? Mind you that i am talking about the real satoshi, not the fake ones claiming themselves to be satoshi.
Satoshi's identity being anonymous has nothing to do on why bitcoin is trusted but bitcoin is trusted because it's the first crypto and till now it is still there. it's also strong because no matter how low its price can go, it can still recover and increase more than its previous price. People get used to this trait of bitcoin, that is why they trusted it.
If ever satoshi pops up one day, it cant affect the price in any way (good or bad) but the price will still depend on the actions of the investors. Bitcoin is bitcoin, no change is going to be made on its system so no changes in its value is going to be felt. We know that what you mean is the real satoshi. We have no time entertaining the fake one.