I don't think so. Krugman is 70 years old. This means 2 things; 1: his beliefs are basically set in stone. Old people are less likely to change their minds about anything, let alone the thing they've practiced their entire career. If decades of being wrong about things already haven't made a dent in his way of thinking, Bitcoin, which flies in the face of the most fundamental and deeply held axioms of his entire understanding of economics, has 0 chance of getting thru. 2: even if it did, it would take years, decades more. His lifespan will run out before he catches up.

Krugman is the most stubborn of all Keynesians, and the most Keynesian of them all. Bitcoin is Austrian economics incarnate. I don't see him ever owning a single Satoshi.