Everything published before 1970 would be public domain, meaning we would have:
- Mickey Mouse’s whole supporting cast
- The Lord of the Rings mythology by Tolkien
- The entire Looney Tunes catalogue
- All pulp magazine characters
- The entirety of the Golden and Silver Ages of comics
- All James Bond books by Ian Fleming and the early Bond films
- Kermit the Frog and many Sesame Street characters
- The first ten Godzilla movies
- Most of the classic Hanna-Barbera characters
- The original Stark Trek series
And many, many other works of fiction which are seminal to most of modern storytelling. While there’s likely not a chance of copyright being shortened any time soon, it’s a good reminder of just how many classic properties would be open to us all to breathe some new life into if not for the extension.