I don't frequently like to make predictions into the future, at least not past a few days. But, I'm willing to make one. Sometime in my lifetime, businesses will exist that try to duplicate celebrities' voices, including those of the deceased, for computerized speech synthesis. Finally, you could have Majel Barrett read your email to you, or perhaps Fran Drescher for the so inclined.
I would love this service. There are many peoples' voices, celebrities and otherwise, who I'd love to hear more often. For example, I love the voice of the guy who did the voiceovers for the ancient books you'd find in Diablo (it might be this guy; I was thinking it was Tassadar himself, but didn't realize it was also Cain)... I'd love to hear that voice give me all sorts of idiotic status updates, like "you can't delete that file; it's in use by another program" or "you have two thousand three hundred and seventy-six new emails." Or, hey, it's the future; "your pot roast is ready."
If such a service existed today, I think that Sean Connery would be a very popular model, as would various Simpsons and Family Guy characters.