Earlier this month Square Enix revealed Rise of the Tomb Raider: 20 Year Celebration for the PS4, Xbox One and PC. While this game will be hitting a number of platforms, it will bring special features to the PS4 version, along with a nice pre-order bonus.
According to the PlayStation Store, if you pre-order Rise of the Tomb Raider: 20 Year Celebration you will also get a Tomb Raider: Definitive Edition as a bonus for the PS4. That's right, pre-purchasing the 20 Year Celebration version of Rise of the Tomb will get you the prettier version of the game that started the reboot series.
Rise of the Tomb Raider: 20 Year Celebration will also include VR support for the PS4, as well as the new Blood Ties DLC, co-op play for Endurance mode,the "Ultimate Survivor" difficulty mode for the main campaign, a special outfit and gun for Lara, and 5 classic Lara skins from various games. This version will also include all previously released DLC: Baba Yaga: The Temple of the Witch, Endurance Mode, Cold Darkness Awakened, 12 outfits, 7 weapons, and 35 expedition cards. With over 50 hours of gameplay, this is the most comprehensive version of the award-winning experience.
TL;DR: It comes with a lot.
[Thanks for the tip, Wario]