Delicate seems to be a soft mode, Tender is probably like an airy mode, Firm is likely a Solid mode, Powerful is obvious, Resonant is definitely a clear mode, Warm is obvious.
The one I’m most curious about is Lucid! Is it gonna be like Miku V3’s Vivid append? I suppose we’ll have to wait.
Today, Dreamtonics released an interview video featuring Weina Hu! Below is the video as well as a summarized thread by Twitter user LenKiMo. We will be expecting more episodes in the future. 
Interview:
LenKiMo’s thread:
And then What If THEY WILL MADE THE CHINESE VA OF MULAN SYNTHV LIU YIFEI, i guess?