At one point in time, Geonosis housed a plethora of native species. However, Geonosis's largest moon was struck by a comet, causing massive amounts of debris to rain down on the planet culminating in the killing 99% of all indigenous life. This event also created a ring of debris that continuously bombarded the planet's surface over millions of years, destroying much of the remaining life. Geonosis became an inhospitable, desolate world with life being forced underground due to extreme environmental conditions, including flash floods and solar radiation storms. Eventually, only the truly cunning, resilient, and merciless species were left alive; Geonosians being chief among them.
Once the Geonosians were able to contact other species, the Baktoid Armor Workshop constructed several droid and weapon foundries on the planet. In addition to this industrial infrastructure, Geonosis was known for the gladiatorial games held in the planet's many arenas. The combatants included Mandalorians, one of which rose to fame with the help of Imperial Intelligence. As a result of these Geonosian games, the champion declared himself the new Mandalore and allied the Mandalorians with the Sith Empire, striking a vicious blow against the Galactic Republic.
Mandalore the Lesser, as he is known today, blockaded the Hydian Way until forced to retreat by Hylo Visz and accompanying Republic forces. As a result, Mandalore the Lesser called the Great Hunt, only to have the winner challenge him to a duel, kill him, and claim the title of the new Mandalore. Using Geonosis as his base of operations, the new Mandalore consolidated power and thwarted an uprising by those who opposed him by supporting the Republic. Mandalore's status is described as secure in his place with the Mandalorians as they remain "cautious, well-paid allies of the Sith Empire."
With the new Mandalore's base of operations on Geonosis, combined with the knowledge that he is looking for a new champion, we speculate that Geonosis may supply players with the opportunity to compete for such a place of honor. This feat could be accomplished through use of the arena system to battle other players and NPCs and/or the performing of various missions and quests.
The Mandalorians are currently working with the Sith Empire, however, we feel it would be wrong to assume that Republic players will be left out. Players from either faction may be able to support their respective causes, be it the continued servitude of the Mandalorians to the Empire or possibly working towards turning them to fight the powerful Sith. Warriors love battle, and manipulating these great Mandalorian combatants may be the story focus we see on Genosis.
In Act 2 of the Threat of Peace comic, a Sith guard says, "Fresh merchandise for the Geonosis slave market. Let's pick it up." This statement, while vague, can lead to the conclusion that the slave market on Geonosis is quite lucrative for those willing to venture into such trade. Slaves might be forced to fight in arena matches and perhaps even the Mandolorians use them to some extent. While this might be a simple fact on Geonosis with little player interaction, it is sure to be one of the main story elements of the planet.
The fact that Baktoid Armor Workshop constructed several droid and weapon foundries on the planet is also interesting to note; any area of war production would be important to the Sith and the Republic. Similar to our speculation on the industrialized Belsavis, players may be able to fight over these factories in PvP or PvE format; possibly even granting bonuses or access to the faction that is currently in control. Rewards centered around this technological war-machine could include weapons, armor, or even a droid companion or two.
Geonosis is certainly an interesting planet with a long history of fighting and destruction. By including Geonosis in Star Wars: The Old Republic as a playable planet, BioWare and LucasArts could offer the opportunity for players to carve out their own place on it's the blood soak arenas and barren landscape. Many have clamored for Geonosis to be included and only time will tell if it will and how its story might shape our future adventures.
SW:TOR Timeline - The Empire Changes Strategy
SW:TOR Biographies - Mandalore