PlayStation folks can also download their copy from the PSN Store when it updates later today. You can grab it for £7.99 or 800 Microsoft Points. The expansion adds a lot of additional content and features, including new abilities and a new area to explore outside the Kingdom of Ehb, called the Aranoi Desert.
The desert consists of new and tougher enemies and high level loot. The level cap has also been increased from 30 to 35, so those extra levels should help you handle those high-class enemies.
Some of the new features in Treasures of the Sun include the ability to enchant items, reallocate all the talent and skill points, and more.