Square Enix have a weird fascination with adding decimals after mainline numbers. Kingdom Hearts 2.8 just got announced, and even the demo for Final Fantasy XV, Episode Duscae, got a 2.0 release.
We've gone a step further still and gotten a 2.0 version of the last trailer for the game. You know, the one with all the dad hugging, that annoyed fans who wanted more action. Take a look at the new trailer, entitled Dawn 2.0. It's got a few extended scenes in it that will likely please those veracious for new content.
And don't worry, Dad hugging still features. Square Enix have that covered.