I am not sure what will they do but I am very interested to see. Zelda games surely won't feel the same going back to the past formula so I doubt it'd be completely back to it, at the same time I don't know if they will make BotW the new standard mold or if they want to incorporate more from the past games and have the next one be a merge. I imagine for now they will squeeze what they can on BotW with the DLC before a new game starts the production stage. I wonder what are we going to be getting.