Excerpt was a bit lacking... I don't have a good idea of what kind of detail they went into, especially with the plot ideas.
The only one mentioned was "Orest can ask the PCs to run guard duty for a magic item shipment." Not very interesting on its own, but, it is a seed.
I'm hoping we see some more elegant and interesting adventure seeds in the actual book. If not, we can all do it on our own, but it would be nice to have a common idea base. The d100 table in the 3.x DMG was not awful... not fantastic, but it was alright.