It is evident from the police station firing scene that Rocky doesn’t want to give away even his single piece of gold. Also as narrated, Rocky was about to execute his biggest plan and there was only one place where he could hide his all golds. So, Rocky’s biggest plan was either to hide all of his golds even after his death or to prepare for an escape plan after being swallowed by the ocean.
So the hint for Chapter 3 is -
If Rocky is dead, the story would be whatever happened in-between 1979 to 1981.
If Rocky escapes from the ocean, it would be establishing another Empire but without REENA.
The soul of KGF movie is incomplete without the essence of REENA. So, the better Chapter 3 would be to see what happened in Rocky’s life from 1979 to 1981 with REENA’s presence and essence, how they fight, banter and love each other etc…