Thanks for your message ! I didn't notice immediately that someone replied.
True, Newtek was reselling the TVPaint technology under the "Aura" name until 2002-2003 then it was bundled with the VideoToaster only.
But to sum up the story quickly, TVPaint evolved on its own after that, mostly to specialize in the 2D Bitmap animation field.
Today, we are behind some cool films & games : the Song of the Sea, Ethel n Ernest, Red Turtle, Hirune Hime, Charlie Brown, StarCraft, Overwatch, etc.
Thanks for the links. I already watched some of the videos and will post some questions later.
In the past, I used to play with Poser, Silo and Filer Forge for 3D stuff. So I need to think different today.
End 2015, I looked into Substance Painter, ZBrush and 3DCoat. I felt more confortable with 3DCoat approach, so I decided to go ahead with it.
Playing with voxels and PBR is cool and interesting, I wish I can practice more in the future.