First of all, I feel anything can happen in the crypto sphere so no one exactly knows whether he did this or not, if you got any clue about it then search for it and decode it, the bitcoins will be yours.
The old members of the forum are too smart and won't leave any chance to get something like this if they even get the slightest of doubt that Satoshi hid puzzles which we can see from the participation when a puzzle starts here.
The question is, whether you would do something like a treasure hunt if you were the Satoshi..?
Dorian was a clever individual and also had a sense of humor so I would not doubt he has some bitcoin hidden away and to unlock a private key at some set date or maybe even at some price once it gets to its target.
He has been known to put code and hidden messages in things on the blockchain in the past.
So who knows until they have been revealed for all who has the opportunity to try their luck and to revel in it when it does happen.