My turn to pitch in my opinion of the rework
I think belveth should still be able to decide if she wants to play aggressive early, but it needs to be undertuned. Eve suggested that lvl 1 Q should do 0 damage to players but give it better bonus AD scaling and flat growth. I think that's a great idea that would still make her able to start comitting warcrimes from level 4 onwards or level 2-3 if she has prio.
Lorewise there's nothing preventing her from becoming a void queen via devouring enemy champions instead of camps. She should have that choice without being extremely disgusting in high level play.
I'm still just a lvl 116 emerald player with 700k belveth mastery so maybe my opinion holds no weight. But better speak out than not :)