The First Templar

[Gemini-Phoenix]

GAME now have box art up on their site, along with details of what's included:

Originally Posted by GAME

The First Templar Special Edition on Xbox 360 Includes:

• Contains exclusive bonus level ‘The Arena’. Caught by the vile Byzantine, you must survive the perils of ‘The Arena’. Fight for your life, face the Gauntlet and stage your daring escape. Choose who will stand beside you as you confront the Byzantine and his minions. This stand-alone bonus level is designed to challenge even the most battle hardened Templar Knight.
• An A2 double sided poster showcasing stunning character and location artwork.
• The Official Game Soundtrack.

So basically some DLC, a poster, and a soundtrack (which may or may not also be DLC)

It is also the only edition currently available as far as I know, so I guess this would come under the "First Release" category