Jigsaw seems to be designed to let others pass the test to be reborn, but his new apprentice Amanda has not left the person who is tested the way to live. Amanda is actually dead at his own hands, if she hadn't killed The female doctor may all survive. In the end, the female doctor is Jeff's wife, which is a bit unexpected to me.
Jigsaw took into account all the possibilities that he was killed, and the tapes prepared by Jigsaw in the end actually planted a seed in Jeff's heart, and it depends on how the seed germinates. Except for Jeff, all the protagonists in this film have died. If we want to connect to the next one, I think Jeff will be the entry point.
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