The rise of artificial intelligence has transformed various aspects of our lives, particularly in the realm of voice technology, where AI voices are increasingly being used in virtual assistants, customer service bots, audiobooks, video games, and accessibility tools. Current commercial AI voice generators offer basic control over speech rate through sliders or predefined speed options, but this level of control is often limited. The future of AI voices promises much more fine-grained control over speech synthesis, including prosody, pronunciation, emotional expression, and speaker identity. Advancements in these areas will enable the creation of AI voices that are more natural, diverse, and engaging, with applications in entertainment, accessibility, customer service, education, content creation, and beyond. However, the development of fine-grained control in AI voices also raises important ethical considerations, including concerns about misuse, impersonation, and the spread of misinformation, highlighting the need for transparency, consent, security, and education to ensure responsible use of AI voice technology.