For some context:
I've seen, for example, Avi Loeb updating a 3I/Atlas preprint with a second versioned draft of the same preprint on Arxiv, but the vague description of the Villarroel "companion papers" that were removed makes it sound like they were neither new versions of the previous nuclear correlations paper (which had already been on Arxiv and was later published) or entirely papers being submitted to a journal for publication, just a remix.
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I've seen, for example, Avi Loeb updating a 3I/Atlas preprint with a second versioned draft of the same preprint on Arxiv, but the vague description of the Villarroel "companion papers" that were removed makes it sound like they were neither new versions of the previous nuclear correlations paper (which had already been on Arxiv and was later published) or entirely papers being submitted to a journal for publication, just a remix.