Advanced research already includes kind of "mind control" of generating the speech process, e.g. using AI, you train your voice and basically speak your own voice without stuttering. But in everyday use it may be very strange. Whisper to speech is possible, as well, it's no problem nowadays, since we're playing with RVC speaking or singing. It's a good thing for people with severe stuttering, but for people with mild stuttering it would rather making things weird, i.E. explaining to people they meet what it's all about...