Orion is for the BEO to Mars and the Obama astroids
When they canceled Ares they said that they would continue Orion for possible ISS missions. They have also changed crew capacity, IIRC. A lot of the work is either re-inventing Apollo or extrapolating from Apollo.
” Spacecraft to serve as the primary crew vehicle for missions beyond LEO
Capable of conducting regular in-space operations (rendezvous, docking, extravehicular activity) in conjunction with payloads delivered by the Space Launch System (SLS) for missions beyond LEO
Capability to be a backup system for International Space Station cargo and crew delivery”
http://www.nasa.gov/exploration/systems/mpcv/index.html