What will happen after the copyright of Mein Kampf expires?

[True Federalist (진정한 연방 주의자)]

Anyone who strongly wants to peruse Mein Kampf today can, so I don't see where it would be significant.  Of course, the copyright should have ended in 1995 or earlier, as life+50 is really the maximum sane copyright length. I suppose the book could be used as an excuse to lengthen copyright terms.

[True Federalist (진정한 연방 주의자)]

Anyone rewriting it would probably remove the Lebensraum portion of the book, as it's much more dated the rest.

Not really.  Just look at the West Bank for a modern day example of Lebensraum in action.

[True Federalist (진정한 연방 주의자)]

Interestingly enough, Mein Kampf was involved in a 1939 U.S. court case, Houghton Mifflin v. Stackpole, that established that stateless persons can hold and transfer copyrights under U.S. law. (Hitler was a stateless person when it was published in 1925 and Stackpole was trying to publish an unauthorized translation under the theory that as a stateless person, Hitler had no copyright under then current U.S. law.)