The Devs over at Champions Online has released their first Adventure Pack called The Serpent Lantern. This new Adventure Packs adds “new content across a wide range of levels and journey to Africa to foil the plots of the Supreme Serpent, leader of VIPER!” Here is an overview:

• We added the Difficulty Slider, which will let you choose to make instanced missions more difficult. Doing so will increase your rewards and some maps will also drop better items. We expect that we'll make some changes to the slider; players on the test server are already clamoring for an even harder mode!
• The events of the Serpent Lantern also showcase the newly revamped VIPER villain group. They have new weapons, spiffier uniforms, and are generally a nastier and more formidable force to be dealt with. Everyone seems to think these guys a whole lot more fun to take on now.
• We've normalized the energy builder powers so they all have approximately the same efficiency. In general, this increases the damage they do across the board by 17 percent.
• We've heard many complaints that teaming seems less efficient than going solo. We crunched a bunch of numbers and significantly increased the teaming bonuses for defeating critters and the bonus for completing crossover missions.
• Veteran Rewards are granted to players based on how long they've subscribed to Champions Online. Every hundred days of subscription, a new set of bonuses are granted to you. You earn costume parts, retcon tokens, XP buffs, and cool devices. Details here: http://www.champions-online.com/veteran_rewards.
• A zillion bugs were squashed.

Full details for the changes in Serpent Lantern can be found here.