Millions indeed.
You're hypothesizing as much as I am. Neither of us are provably correct, but both of us describe plausible scenarios. Either way, most bitcoins from the dawn of bitcoin are dormant, so the situation hasn't changed. If bitcoins being lost were an issue for Satoshi, there would be some design decision in the protocol to recover them - he obviously knew that bitcoins were going to be lost over time.
I'm not worried about Satoshi owning millions of coins. I don't think the sky is falling. I'm kind of just poking fun at all the doomsayers on these forums. I think everything is great and Satoshi made a brilliant machine. The only thing left to do is follow through and remove the max block size limit like he wanted (according to the design of the protocol) and let bitcoin roll!