1. A system for content alteration of an existing media work, comprising: a composite media work that includes at least a constituent portion having alterable content that publicizes or promotes a topic related to at least one of a real-world person or real-world entity, the alterable content including at least one alterable component element within the alterable content; a data record of applicable alteration criteria regarding a proposed derivative version, wherein at least one of the applicable alteration criteria is accessible based on a changed status of the at least one alterable component element, wherein the changed status includes at least an indication that at least one of the real-world person or the real-world entity has at least one of died, become non-operative, or retired; a data record that enables management of one or more records of primary authorization rights applicable to original content of the existing composite media work including primary authorization rights to a content alteration; and a listing that identifies such alterable content suitable for incorporation in the constituent portion of composite media work.