Tolkien continually revised his writings and published in 1954. I'm sure there are some hints looking back in retrospect at his earlier drafts.
And we know he changed the Hobbit to give the ring more power in later editions, for example making it irresistible to Golem. This sort of changed was likely propagated throughout the LOTR drafts as he made the ring more powerful.
Yes, but Tolkien knew from the outset (in approx 1938) that the Ring absolutely could not be used. This was the whole point of Frodo's mission, that the Ring must be destroyed, even though the details of the tale changed substantially as Tolkien wrote and rewrote.
By 1944, Tolkien was already writing about Frodo trudging through the dead marshes on the way to Mordor, bearing the hideous burden of the Ring. The bomb was still a year away.
And we know he changed the Hobbit to give the ring more power in later editions, for example making it irresistible to Golem. This sort of changed was likely propagated throughout the LOTR drafts as he made the ring more powerful.