If you follow us on Twitter you'll already know (if not, why not? There's a button up on the right there), but it's good to do a post about these kinds of things. Creation Centre has been pulled down, but is back up and badged for FIFA 14.
The PC to Game creation tool is running again, but short of the main screens, it's hard to find any changes. Having been through the process of creating a player and a team, there is nothing that stands out as new. Literally nothing. We did a side by side on some screens from last year and it looks like the kits are the same, I suppose it's possible that there are some new boots. Maybe. In fairness the functionality added last year was impressive, sponsors for example, but it's disappointing to not see more improvement this year.
Going forward anything you make will only be available in FIFA 14 and if you edit any old creations, they'll only be available in FIFA 14 too.
If you want to dive into Creation Centre, it's here and if you're new to it, there's a run through of Creation Centre content here. Prior to using it, you'll need to link up you EASFC account. Details on that here.