An ad for Tomb Raider: Definitive Edition has appeared on Spike's VGX website, noting a release date of January 28 for the PlayStation 4 and Xbox One. It encourages viewers to "watch the trailer," but clicking through to the game's site does not currently lead to a trailer for Definitive Edition.
This year's reboot was supported with multiplayer DLC, but developer Crystal Dynamics noted in March that it did not have plans for single-player DLC. The contents of Definitive Edition will likely be revealed during tonight's awards show.