callofstalker: I asked about this in a topic too and after watching the video again after finishing the game i'd say the scene takes place in one of the earliest versions of the game because of some things mentioned in the video.
Here are some of them:
- Shilard is talking about Demavend as if he was alive.
- You can see the territory given to the Order of the Flaming Rose on the map whereas Geralt learns Radovid gave them a new home.
- Shilard talks about the rebellion as if they are talking before the assault on castle or as if the assault failed.
- You can see in one of the pictures, on Radovid's side stands Philippa, who left the court sometime ago, probably just before Witcher 2 begins or just after the beginning of Witcher 2.
Seriously it's just another plothole among many others but even with this many plotholes the game is excellent, i can't imagine how would it be without these plothloes, RPG game of the last decade maybe?
In my opinion, the trailer's aim was to introduce to the world and its politics and social issues, rather than showing a scene from the game. The things you pointed out had to be explained or just shown, f.e that Demavend was a weak king, that OofFR still exists, or that Philippa is the chief advisor on Redanian court. CD Projekt did it in the best way possible, IMO.