Reaper of Souls is the first expansion for Diablo III. Blizzard revealed a whole new act, a new hero called The Crusader and the act boss: Malthael.
What has been revealed so far, behind closed doors:
- The expansion is called Reaper of Souls.
- The new, playable, mid-range melee class is The Crusader.
- The level cap is increased to 70.
- The final boss will be Malthael, the angel of death.
- Endgame, itemisation and the paragon system will be updated.
Blizzard also released the expansion's CG animated opening and a gameplay teaser. You can check them out above and below, respectively.