SWG - Chapter 5 Notes @ Official Site

The SWG site has the notes for Chapter 5: An Entertaining Enterprise, which offers a truckload of changes, additions and tweaks.  It's too long to quote entirely but here's the opening few items:

Profession Expertise System Rollout Complete: The final two iconic professions, traders and entertainers, are the beneficiaries of all new skills and abilities in Chapter 5, allowing them to fully customize their characters and carve out their own place in the galaxy. Players will be able to earn up to 45 expertise points as their characters progress to level 90, which they can spend as they please on new abilities and modifications to existing abilities.

•  The Trader Expertise System: New trader talents and abilities have been divided into two trees. The Production tree allows players to choose skills such as "Advanced Production Technology" and "Deconstruction Techniques" that will allow them to not only increase the size of their storage capacities, but also decrease the costs and the amount of resources needed to produce items. The Specialization Tree offers abilities like "Artisan's Dexterity" and "Advanced Resource Refinement" that will give the player specific bonuses to their chosen profession.

A list of all the new trader skills and abilities can be found here: SWG Comlink: Trader Expertise

•  The Entertainer Expertise System: Entertainers can now assign expertise points within two trees. The Artiste tree includes new skills such as "Holographic Mastery" and "Lasting Impression," which increase the stats and duration of specific bonuses and buffs that Entertainers can place on other players. The Drama tree offers abilities such as "Rising Spirit," "Controlled Spin" and "Allure," which increases their effectiveness in group combat.

New Reverse Engineering System for Traders : This new system provides traders with a greater level of involvement in the Star Wars Galaxies economy, along with making them a more valuable member of any party or guild. Through this system, traders will now be able to reverse engineer items in-game to create new item upgrades for use by themselves or other players.

Through a new reverse engineering tool, traders will be able to deconstruct items, weaponry, armor or clothing in-game and extract "Power Bits" and "Modifier Bits" that can be combined to create item upgrades that can be applied to existing weapons, clothing or armor. Traders will be able to craft both permanent item upgrades (Skill Enhancing Attachments) along with temporary item upgrades (Power-Ups) to expand their business and make them even more sought-after in the galaxy.

More information on the Reverse Engineering System, including detailed information on constructing item upgrades, can be found in this article: The Nuts and Bolts of Reverse Engineering.

Time to Go Camping : The galaxy is a big place, and sometimes it's necessary to undertake days-long expeditions. Fortunately, traders receive another new skill in Chapter 5 that will allow them to assist with players' ventures far from home.

Traders will now be able to craft and sell campsites. By loading the campsites with different modules during the crafting process, traders can customize the functionality of the camp to the order of the customer. Such things as a Shuttle Beacon, Cloning Center, Junk Dealer and Entertainment Area can be built into the campsite, making them a player's home away from home.

You can see screenshots of the new player camps here in this feature, "Gone Camping!"

Build-a-Buff: Traders aren't the only recipients of new features in Chapter 5. Entertainers will new be able to craft custom bonuses to sell or give to other players. These "Build-a-Buff" bonus packs will include a series of trade offs (positive buffs that can be strengthened by choosing additional de-buffs), to offer players a nearly exhaustive group of new buffs.

To learn more on how to build a specific buff package, including screenshots of the new user interface for the system, can be found here in, "Build-a-Buff."

Chapter 5 Gift: When players log in to download "Chapter 5: An Entertaining Enterprise," they will automatically receive a custom one-use campsite kit that they can take on their galactic adventures. In addition, they will receive a limited-edition collectable painting entitled "Camp Life" that they can place in their home or other player structure. You can see the chapter 5 gifts here.