The Dawn story trailer for Final Fantasy 15 runs a bit longer in the TGS 2015 version.
Square Enix has brought a Final Fantasy 15 trailer to TGS 2015. This is the Dawn trailer that was shown at gamescom last month, but is only extended.
Square is calling it an updated version, hence the name Dawn 2.0.
Final Fantasy 15 is still without a solid release date, outside of 2016.