- John and Kate's conversation immediately after the cemetery shootout was rather touching, in retrospect. John tries to comfort Kate by saying that some things simply can't be changed, which hits John every bit as hard as the fiancee's death hits Kate (by virtue of, you know, the entire day's events proving beyond a doubt that all the crap he went through in T2 was for nothing). John feels completely helpless, but that he still tries to comfort her despite all of his own hope being lost helps to explain why they're eventually husband and wife.
- In the cemetery scene as a nod to the second movie, John makes a remark on how the Terminator was the closest thing to a father he had.
- After her passing, Sarah was cremated in Mexico and her ashes released to the sea by her friends, likely those who had survived T1 (meaning in spite of her changed mental state, they still cared for her to the end) as well as allies she had made over the years like Enrique.
- The weapons in Sarah's coffin, for two reasons. One, it means that her friends, despite probably thinking that it was crazy, followed through with her will to store them in there. And two, she left them behind for the Resistance, just in case. Her final action before dying was to make sure John was prepared.
- The T-850 acknowledging Connor as a friend, even though both of them know John has to die at its hands in the future.
- The video game adaptation, Terminator 3: Redemption, has an extended ending which sees the T-850 back in action!"Do you know who I am?"
John Conner, leader of the Resistance.
"What's your mission?"
To ensure the survival of John Conner and Katherine Brewster.
"Are your new systems coming online?"
All combat functions: fully operational.
"I was hoping your resurrection would take place under happier circumstances, but it wasn't meant to be. We need you now!"
Heartwarming / Terminator 3: Rise of the Machines