Interesting announcement from Sony and Panasonic about collaborating on a new standard for a 300gb optical disc. They hope to have the standard finalized by the end of 2015:
Sony Corporation (‘Sony’) and Panasonic Corporation (‘Panasonic’) today announced that they have signed a basic agreement with the objective of jointly developing a next-generation standard for professional-use optical discs, with the objective of expanding their archive business for long-term digital data storage. Both companies aim to improve their development efficiency based on the technologies held by each respective company, and will target the development of an optical disc with recording capacity of at least 300GB by the end of 2015. Going forward, Sony and Panasonic will continue to hold discussions regarding the specifications and other items relating to the development of this new standard.
These sort of things rarely filter down to the consumer level, but rather tend to fulfill high end data archiving such as might be needed for handling data for a movie.
One possibility, however, is that by the time the standard is complete there could be a demand for something like this for 4K movies.