Kingdom Hearts 3 is currently being developed by Square Enix and the game is expected to create a global phenomenon when released. While Square Enix has yet to share a release window for Kingdom Hearts 3, many retailers are already taking in pre-orders for the game.
The latest is Amazon which has started offering the game on pre-order. The Kingdom Hearts 3 ad on Amazon came with all the precise information except for the release date. Hence, this makes it a placeholder that is pending for confirmation and this is why fans should not do a pre-order yet.
Also, this is partly because there is still a chance for Kingdom Hearts 3 to get its release date delayed or cancelled. For better assurance on this, it is best to wait until E3 next week.
This is due to the fact that Square Enix is going to be at the event to unveil on Kingdom Hearts 3. The game developer is also expected to share a release window for the game and if it happens, then it will be safe to perform a pre-order for Kingdom Hearts 3.