Hey NE0-OCEANA,
The demo probably hasn't been updated since you last played. Rather than updating the demo, I'm planning on having all the new content revealed in the full release - I may even take down the demo at that point, because it would be quite different from the final product.
In other words, a lot of progress has been made, but most of it's private at the moment :)
Hoping to release soonish (later this year)!