Global Agenda has made an official announcement about their launch. The world wide release and all players will be able to enjoy the Global Agenda: Conquest features free. At that point, you must pay to play the Conquest portions of the game (regardless of when you purchase the game). Remember that the non-Conquest features are free-to-play after your initial purchase. 

Here are more details on the launch, and what Global Agenda will offer players at launch:

Create your agent - Create, customize,(Global Agenda Credits) and develop multiple agent characters, complementing your FPS skills with accessible RPG-style progression. Unlock weaponry and cuttingedge devices including jetpacks, grenade launchers, mines, deployable turrets, stealth suits, holographic decoys,robotic droids and HUNDREDS of others.
Co-Op with friends online - Four players share the same online mission experience - working as a team,communicating via built-in text and voice chat, infiltrating facilities, defeating end bosses, and earning technology upgrades.
Compete in fast-paced, multiplayer matches - Teamwork and tactics are paramount within objective-based game types designed from the ground up to support intense and balanced player vs. player combat.