His mind might have been on other things. He might have intended to, but in the end not had the chance. He might have been worrying about his family.

Or liquidate all his holdings?

I read that he selected euthanization in the circumstance when he could no longer able to communicate, and that came about.

Hal was one of those off-the-charts smart people, and was kind and well-liked by everyone. He also liked to prank people, and the Satoshi prank is just the kind of thing he'd do.

He was interviewed a few months before his death where he was asked if he was Satoshi, and he just smiled.

My standard bet is the price of a beer.