Is it possible that there's enough in the way of voice-recordings for them to create a simulation of her voice for future projects? (Is this something called "voice sampling"?)
If possible, it'd be an equally great move to still use her for any new lines spoken by the computer.
IS it possible?
Yes, something similar was done with Superman Returns when they used Marlon Brando for Jor-El. However, since we seem to be going into a different type of "universe" for Star Trek with this new film, maybe someone new would be better for the computer voice. We've already had several different computer voices for the Enterprise series and TOS movies. So why not someone new?