Did Sai Baba ever give any hints about the future of the Buti mansion before it became his Samadhi?

Yes, Sai Baba made several remarks that, in hindsight, seemed to prophesy the Buti mansion's ultimate purpose. According to Chapter 39, upon hearing the plans for the temple, Baba joyfully gave his permission and stated, "After the temple is complete, we too shall come to stay there." He further elaborated by looking toward the building and saying, "After the mansion is finished, we will use it for ourselves. There we shall talk and walk; there we shall all play together." These words, spoken before his final illness, indicated a personal use for the structure, which was ultimately fulfilled when it became his sacred tomb.