Assuming this is a good faith question, and not an ad campaign in disguise. Also I'm answering while assuming that the "this" in your question is referring to the still image posted here. (I didn't watch the video; no interest in a corporate game trailer, though the answer is likely the same for any animation as well.)

Yes, you could make this entirely in Blender if you wanted to. Blender can be used to create just about any kind of scene.