The BioWare Blog details the five unlockable items for Dragon Age 2, used by the character Evra. Evra's Ring was used "to punch demons in the face, sometimes felling them in a single blow." We can probably assume it boosts your important demon-punching stat. BioWare isn't as specific about the properties of Evra's other two items, a Trophy Belt and the Air of Confidence ring.
The Ivo Family Crest and Dura's Blue Flame tie narratively into browser game Dragon Age Journeys. The team still plans to finish that project, and is working on it alongside Legends.
Dragon Age Legends hasn't launched yet, but you can still sign up for beta access. The full game is expected to hit in February, in time to score some loot before scheduled March 8 release of Dragon Age 2.
No word was given on whether these items are exclusively offered to Legends players, or if they'll be available as standard DLC for Dragon Age 2. We've contacted to BioWare to find out, but have yet to hear back at the time of publishing.