In an interview with Digital Spy, Karen Gillan revealed that Nebula was originally supposed to die in the first Guardians of the Galaxy. They asked Gillan if she expected such a large arc for Nebula, and she replied with the following:
“No, I did not actually. I definitely had a feeling that there was room for the character to expand in the future, but she was originally supposed to die in the first movie, I think I remember in the script. She obviously did not die, then I found out that she was coming back in the second movie and then I found out we got to explore all these amazing things about her past and her relationship with Gamora, her sister, so I was really happy.”
Nebula already is confirmed to appear in Avengers: Infinity War, so we know her life seems to have far more worth than her character having been killed off. Gillan also was trying to pitch a spin-off sibling rivalry film for Gamora and Nebula.
“I’m waiting for this [spin-off] because obviously this needs to happen. I don’t know if it’s ever going to happen, but I would love it.”
While their spin-off wouldn’t be the first female-driven project I’d have in mind, I certainly wouldn’t oppose the idea.
Guardians of the Galaxy Vol. 2 hits theaters on May 5th.