misbegotten_noob
Chocobo Breeder
If she knew she'd die it would make Cloud's and the crew's guilt pointless. The whole point is that she didn't have to die, that's why Tifa thinks they might not have done enough and Cloud thinks he failed. If everything was predetermined, then all of this is meaningless.
It was meant to be a sudden tragedy. Besides it's not very flattering to her character at all. Knowing that the crew would be heartbroken and would feel guilty she should have warned them. In AC she should have told Cloud the truth not nudge him to seek forgiveness for a non existing failure.
So, no, I don't think it was ever meant for her to know she'd die.
It was meant to be a sudden tragedy. Besides it's not very flattering to her character at all. Knowing that the crew would be heartbroken and would feel guilty she should have warned them. In AC she should have told Cloud the truth not nudge him to seek forgiveness for a non existing failure.
So, no, I don't think it was ever meant for her to know she'd die.