I'm predicting this:
* A cardboard sleeve version like Mirrorcle World but instead of two discs it’s three high, making it unlikely to EVER fit in ANYBODY’s shelves EVER
* There will be 5 different images on the slipcase so you must collect 5 of them
*The discs will include: CD music, DVD of the PV, 2nd DVD with exclusive digest footage of Ayu’s 50th Single Collection concert but it will only run for 5 minutes making it a very expensive advert
* 1 in every 50 copies will contain a random prize, 1 in 1000 will contain an authentic signature from Ayu
Then, three months after the 50th single, the 51st single comes out. Avex releases “Ayumi Hamasaki: Milestones” containing the title tracks from the 49th, 50th and 51st singles. This will only be available as a limited mini-USB version but it contains a virus crashing everybody’s computers. Avex says “oops sorry!” and carries their bags of money away to Switzerland
