Pantheon's latest announced class, the Crusader, might have the trappings of a traditional armored tank, but he's got a few surprises up his sleeves -- such as the ability to dual-wield shields.
Crusaders are front-line fighters that use heavy armor, one- and two-handed weapons, and tall shields as well as a dollop of divine power to smite foes and bless allies. Players who go down this virtuous path can specialize either as a melee-focused Cavalier or a magic-using Paladin.
It sounds as though Crusaders will be very beneficial to parties with group-wide buffs and the ability to tank effectively. They'll also get a squire to help out, undead-banishing abilities, and the option to pick up two shields for both protection and offense.