reversioner

The person entitled to receive the reversion of an estate.

One who has a reversion, or who is entitled to lands or tenements after a particular estate granted is determined: loosely applied in a general sense to any person entitled to any future estate in real or personal property.

One who has a reversion, or who is entitled to lands or tenements, after a particular estate granted is terminated.

A person who possesses the reversion to an estate or office.

(law) a party who is entitled to an estate in reversion.