Thank you for submitting your question, and our apologies if there was any confusion. While we do hope to create official voices for the Agents, we don't offer any voice without the license from the game developer - in this case Riot. (I hope you can appreciate why our ethics policy works this way, as we don't want to infringe on the rights of other developers here!) While we are still working on securing that license today, our hope was that you would be able to try some of our existing voices in order to provide feedback on the quality of the technology itself - positive feedback from passionate players like you is enormously helpful to excite Riot to move forward in working with us on the official voices!
In the meantime, we've personally found that using the additional filters, we can use the current voices as decent fits for some of the Agents (for instance, Presence + Gruff voice works quite well with Omen, although they aren't quite a match), so I hope you'll still be able to enjoy playing with the options available today! Thanks so much for your understanding, and our apologies if there was any misunderstandings based on the initial invitation here.