In a new post, Cryptic explains that these two groups are at conflict with each other in the effort to collect the precious Black Ice. Ten-Towners want the Ice for profit and for those who have lived in the north, while the Arcane Brotherhood desires the substance to increase its members' knowledge. Once a group is chosen, that faction will deliver daily contracts that the player can take up. By repeating the dailies, players can earn enough Black Ice to create a new armor set. Players shouldn't fret too much about their choice, as their allegiance can change on a daily basis with no penalty.
Cryptic will also be introducing account shared banks with the module to help pass items between characters with ease. Module 3 arrives on May 13th.