Here's the launch trailer for Tomb Raider: Definitive Edition. This version has been rebuilt specifically for next-gen consoles and includes updated character models, effects and runs at 1080p.
Also check out this Giant Bomb Quick look which shows over 20 minutes of gameplay footage from the definitive edition:
Tomb Raider: Definitive Edition will be released January 28, 2014 for the PlayStation 4 and Xbox One.