I see what you are saying but, I mean, the trailer is like half minute long. Let's wait and see on the specifics. The only thing I could possibly agree at the moment is that it will likely parallel what Majora's Mask was for Ocarina of Time - a darker, smaller, more story-driven sequel to the first game.
and hot damn this is exactly what I wanted
Majora's Mask was not more story-driven than Ocarina of Time.
Ocarina of Time was all about the story. Majora's Mask was all about the people and side quests. Story of Majora's Mask was just stop the moon. End Story.
If anything BotW is more like Majora's Mask in terms of story. You get the main story in the first like 20 minutes of the game and that's it.
It's a matter of how we look at it, but to me that is precisely what made it a good story; to me OoT was about completing the dungeons and traversing the world (let's be honest - the story itself is nothing revolutionary) while MM was driven by the characters in it. I cannot imagine anyone loving Majora's Mask seriously and only having done the bare minimum of stopping the moon. If that's the case they certainly did not play the game for the story, and I dare say that they then missed the story (stories).
Traversing the world is what BotW is all about. From this perspective it's more similar to OoT.