Another announcement from their Twitter. Chis-a english will have a physical box AND a perpetual one-time license! (Though I am not sure if this is permanent as it is a special promo.
And a small note, just something I found on youtube. You can make Voisona Talk sing, albiet it's very robotic and you need a 3rd party software? I think.
I'm not sure how this works but may have been used to make Takahashi sing during his last concert. But then that's just a theory.