I also like the orc storyline :)
Spectral, how is the process going, or are you playing through the expansion to find out how it ends?

Here's what I came up with:
After defeating the main demon forces, the remnants of their troops began to actively retreat. Vel'iar, one of the demons remaining in Ashan, was in Irollan. He gathers the remnants of the demonic army and leaves Irollan. He flees south, hoping to take refuge in the demon-worshipping city of Al-Sahri, but the city is attacked by a punitive detachment of the Order. To be continued.

Well, the orcs are fighting the demons, so it should be tricky, for example, an exiled orcish clan joins Vel'iar.