Letting retailers know that you're about to launch a new game is not the best idea if you don't want people to know that your game is coming. It looks like Amazon leaked Bungie's plan to release something called "Destiny: The Collection" in the near future.
Amazon apparently listed something called 'Destiny: The Collection', for Xbox One and PlayStation 4. Unfortunately, Amazon realized their mistake quicklt and removed the page, but not before screenshots were been made by people such as lifelower on Twitter.
There was no cover art to accompany the listings, just the name that it would cost £50 to purchase, there were no additional details either.
Destiny: The Collection was listed for a August 18 release, a month before the new expansion 'Rise Of Iron' so it's not that hard to guess what this collection will include. Most likely, Destiny: The Collection will be similar Destiny: The taken King – Legendary Edition which included all the previous expansions as well as the new one, so the collection would then become like the name implies the complete Destiny collection.
This has not yet even been officially confirmed so this collection might not even happen at all but if it is real then it will go out in stores on August 18th for £50 or local equivalent.