I was thinking, and they don't need to make too many more characters to have covered every unique character from the vintage 80's collection. Blade will go up for pre order soon, and then Mosquitor, Mantenna, and a Snake Man (was it Kobra Khan?) is on the way in future waves.
So that just leaves the rest of the Snake Men, Rokkon, Stonedar, Blast Attack, Dragstor, Extendar, Rio Blast, Modulok, Multi Bot, and Saurod. I didn't count the two Tops Rotar and Twistoid and I didn't count variations. But even if you add those they are almost done.
Some characters that have been made though, I do wish they'd make again as either New Eternia or Vintage Collection, like Prince Adam for instance. But still, they've covered most characters between New Eternia, Revelations/Revolution, Movie, and Vintage Collection.