Max,

There's no reason to believe Jews do not die (and thus leave inheritances) in the Messianic age along with the Messiah. Here's proof:

Isaiah 65:20
No longer will there be an infant who lives but a few days, or an old man who does not live out his days; for the youth will die at the age of one hundred, and one who does not reach the age of one hundred will be thought of as accursed.


This refers only to long life, not life without physical death.

-----------------

"He who saves one life... it is as if he saves an entire universe. He who destroys a life... it is as if he destroys an entire universe"

TALMUD - Sanhedrin 4:5

-----------------