Which Soulsborne game have the largest Area or has the most content? Can we expect DS3 to top this?

Bloodborne has less content (e.g. Fewer Weapons). Do you think this is because of updating the graphics to next gen?

I am a little concerned that because of updating the DS series to next gen, we will see lesser content.

I wanted to have a clarification that content will be at par or better than either DS1 or DS2 and will have similar or better graphics than BB.