Allegiance can be pledged to the Court of Celeborn (Elves), Hall of the King (Man), Erebor (Dwarves), or Bar Thorenion (Hobbits). As players progress in their allegiances, they will open up a special quest line. “Allegiances do have you filling up a bar, and there are repeatable quests and rewards, but for me the significant addition is that each of them tells a continuing story,” said developer MadeOfLions on the forums.
Get an early look at all four class halls allegiance halls after the break!
Source: LOTRO Players. Thanks Anonymous!