Sally almost had a chance at a comeback, but just missed it.
Awhile back I was reading an issue of ALTER EGO that was a tribute to Julius Schwartz. In it, Alan Brennert revealed that he wrote a script for Schwartz in the mid-1980s called "Whatever Happened to Sally Selwyn?".
Basically, Sally comes to Metropolis and meets Clark Kent, recognizing him as her dead sweetheart. Superman prepares one of those elaborate schemes to trick her that he always used to protect his secret identity from Lois or Lana, but at the last minute realizes he can't go through with it... not with Sally. Schwartz wanted Brennert to add more action scenes before he would print the story. But before it was finished, the pre-Crisis history was abandoned and Sally went with it.
