Is this your first time playing through the Hinterlands on this machine? Does it previous save files where you played through it before?
These events you mentioned are all part of the expanded hinterlands content, which is unlocked by...
First of all, three out of five locations will only become available after you have unlocked the two achievements called "The Tale of Argos and Io" AND "Shedding a Light". To do so you must complete Hinterlands 5and visit "The Shed" in at least one of your playthroughs.