I can actually see this as a possible boss fight in this world because let's face it; how strong can Hans possibly be? He would need to gain assistance from a nobody like in kingdom hearts 1 where Clayton got help from stealth sneak. Also, Hans sword won't break and Xehanort will be along side him and grant Hans his very own keyblade; dual wield is what everyone calls it. Maybe Xehanort will even be the assistance Hans get in this boss battle.