But I think he is still in btc. Perhaps even fully still.
yep, very likely.
He spent years developing bitcoin and proving it could work, amassed a significant amount of it, when it finally starts to gain recognition he just simply walks away from it?
nah
Very likely just said that to take off the attention. He "switched off" the Satoshi persona and undertook a different pseudonym.
why not? notice like he is not here anymore(one could argue that he isn't here because bitcoin is too big and he is holding a fortune, so he want to stay anon 100%, still can't explain why he was missed long before that happened...) there is a chance that he don't care about bitcoin anymore
so dumping for him would be a good thing, also remember that he say in 20 year bitcoin will be nothing or really big, so he has taken into account the fails of bitcoin, and do you think he is that stupid to "baghold" 1M coins if bitcoin will fail?