That's an interesting question, and the fact is at the moment, we don't know.
Remember, Star Trek II was over 30 years ago, with three decades of being watched and re-watched, allowing it to seep into the public consciousness.
Even non-trek fans are usually familiar with the KHAAAAAAAAAAAAAANNNNNNNNNNNNNN!!
reference for example, but when we watched the movie at the theaters all those years ago, did we know that line would become so well known?