So it begins. A group of fans takes some fictional, but well grounded, movie dialogue, expands that out into a language. The language gets tacked onto a particular Con culture and both grow with some vigour. With this opera, we are seeing the creation of a fine arts and by extension, philosophy. A hundred years from now when we have followed Hawking's command to get off the planet to survive, will humankind see Klingon enclaves on Mars? Are we in fact creating our own antagonists? Add a little religiosity to the mix and a future Terran space navy could find itself fighting D7s manned by biologically Human but culturally Klingon beings.
Gene would be happy he got the appearance right the first time. Or perhaps this is what he was getting at all along - we are Klingons.