Interesting! It's possible she really didn't know, because she might have recorded new voicebanks in the past months/years (we don't know when development started), but she might have thought that those voice lines were for the Piapro Super Pack or some updates of V4X.
Sometimes, the voice provider just doesn't know the technical details, especially if the work schedule is busy with other companies/works (some anime for example).
Or she might have signed a NDA (non-disclosure agreement), so she can't really talk about it until an official announcement
(I'm not an expert of Vocaloid 6, but maybe Yamaha can use the V4 voicebanks for the V6 release?)
Sometimes, the voice provider just doesn't know the technical details, especially if the work schedule is busy with other companies/works (some anime for example).
Or she might have signed a NDA (non-disclosure agreement), so she can't really talk about it until an official announcement
(I'm not an expert of Vocaloid 6, but maybe Yamaha can use the V4 voicebanks for the V6 release?)
