The 1980 treatment sounds amazing...
From this film's Trivia section on this site:
<i>This film was based partly on a 1980 story treatment by Tomoyuki Tanaka and Akira Murao called "The Resurrection of Godzilla" ("Gojira no Fukkatsu"). Conceived as a direct sequel to Godzilla (1954), a new Godzilla, identical to the one from 1954, was reawakened by illegal nuclear waste dumping by a freighter in the Pacific Ocean. The protagonists include Shinpei Muraki (the young director of the Information Science Center), Professor Inamura, his daughter Akikuko Inamura (Muraki's love interest), and American scientist Dr. Radner. The story was also the introduction of what is considered Toho's greatest "lost" monster, Bagan, which Godzilla fought in the story. Bagan, a guardian spirit, has four forms in this film: the Dragon Spirit Beast (Doragon Reijû), the Ape Spirit Beast (Enjin Reijû), the Water Spirit Beast (Sui Reijû), and ultimately, a totem-like amalgam of the three forms. Godzilla savagely fights and kills the monster after the middle of the film. Another adversary for the radioactive terror is a JSDF armored super-vehicle, the Super-Beetle (which was ultimately reworked into the Super-X). The film's climax has the protagonists attempting to destroy Godzilla on Beonase Atoll, with a trap containing Dr. Inamura's nuclear invention, Reiconium. When the device malfunctions, Dr. Radner makes a Serizawa-like sacrifice and reactivates the weapon, engulfing Godzilla in lethal radioactive blue flames, apparently killing the monster, and taking Radner's life in the process. The story ends with Godzilla's lifeless body washing ashore a beach on the West Coast of the United States, with a nuclear power plant nearby; a narration stated, "As long as nuclear energy exists, Godzilla will live," as Godzilla's eyes open and the monster stirs to life with a mighty roar. Although the script was never produced, many of its elements nonetheless remained in the film, including the Shokkiras (the radioactive sea louse), and Godzilla attacking a nuclear power plant (and absorbing energy from the core reactor).</i>
I love pretty much all of that, right through to the ending, with Godzilla washing up on US shores. I wish this would have been made at some point.