Thanks. It's mostly just Taris content though but, it is very interesting because within Taris alone you get.....
1. New items.
2. More to the Taris Upper City Cantina, Lower City, and Under City.
3. Restored .dlg files.
4. A overhaul of the Black Vulkar Base that restores a entire module and greatly enhances it to look as if it belongs in KotOR1, basically after the demo is released I doubt you'll want to go back to vanilla KotOR.
There's also a bit to Dantooine as well.