In the first episode of The New Adventures of He-Man, "A New Beginning", we are treated to a vision of what Eternia looks like without the presence of Skeletor. While we are shown random shots of murky-looking Eternian locations transforming into bright and flowery locations, the most striking moment occurs when we see Snake Mountain and its surrounding land covered in lush greenery! I think the people working on this show neglected to remember all the remaining Evil Warriors on Eternia, because there were quite a few! However, I do appreciate that they attempted to tie up the Filmation series, primarily with this image.
(click on the image to see it at full-size)