And you’ve just nailed where this is all headed. Each of us will have a personal assistant that we like. I am personally going to have mine talk like Yoda and I will gladly pay Disney for the privilege.
People have been promising this for well over a decade now but the bottleneck is the same as it was before: the voice assistants can't access most functionality users want to use. We don't even have basic text editing yet. The tone of voice just doesn't matter when there's no reason to use it.