“Only Deckard, Rachael and the 2 cops (Bryant and Gaff played by M. Emmet Walsh and Edward James Olmos) lived.”
Ford cannot play Deckard since Deckard was a replicant. Ford`ll have to play some other character.
That was never definitively confirmed. I’ll tell you why I personally don’t believe it, and that’s because when he fought against the other replicants, they all beat him to a pulp. He would’ve had their equal strength, especially if he was a law enforcement officer (after all, if Daryl Hannah’s Pris, the “Pleasure Model”, was that powerful, it wouldn’t make sense if a cop wasn’t).
I’m not sure I buy into that summary.
Deckard was probably one of the special ones as well, no mandated expiration date, like his new girlfriend at the end of the movie.
If he and his GF were special, it may be that they will age naturally as well.
Disclaimer: I never read the book.