You can try the FIFA 16 demo right now on all platforms.
The FIFA 16 demo is starting to go live around the world and across the different systems. It first went up on the Australian and New Zealand PSN stores overnight, but is now available on the UK one.
You can queue it up through here. You'll need 4.2GB of free space.
The Xbox One and Xbox 360 versions are also up now. Here's a link to the Xbox One.
The demo lets you try 12 of the game's teams, as well ass the new FUT Draft and Trainer modes. Find out all the details.