I wish they would have demos, too. I didn't think of flower losing her rock sound and maybe singing softer, I wonder what will happen. Techno Speech DID show off the software but only at real-life events to people who attended, so I'm not sure what it looks like to tune in the software. CeVIO AI requires that the AI learns from the voice provider (they have to send like 5ish hours of singing data (I know this because I personally talked to them through email about it)), so maybe her voice provider DID sing for flower's AI? I think that flower/Yukari being on CeVIO AI will be like how Zunko is on UTAU/Vocaloid/Voidol and Kiritan is on UTAU/Neutrino/Voidol where it won't really matter that much if many versions exist, just gives people more options. Hopefully they actually give us some demos some time instead of being so mysterious about everything, it's actually pretty disappointing waiting while twiddling our thumbs being worried. : /