I stopped writing the film and simply let the option expire. WASP wasn't fiction any longer. It had become rather too relevant, and I couldn't imagine a universe in which anyone would pay for it to be made in the foreseeable future.
If you read http://www.boston.com/ae/books/articles/2005/09/11/echoes_from_sci_fis_golden_age/ you'll find out why.
Or read the book.