Nobody has any clue about Satoshi's intentions.

He might have earned enough in real life to not require the BTCs mined early on to sustain himself - thereby not moving the coins. He might have simply lost the private keys and so the coins can't be moved. He might have died and once again the keys lost. He may have mined later on to some addresses that we don't know about and spent from there.

We simply don't know enough to make even a relatively informed guess about Satoshi's intentions. All we know for sure is that some of the early block rewards haven't been touched - that's about it.