The top three look like slugs, so there would be no chance for them hatching at all. The bottom one has a chance of surviving, the hatchling is usually smaller though.
Edit: didn't read the full description at first. But that one would just bout still have me saying its a slug by how it's miscolored from the rest, in the first picture. Unless there's a lighting issue. To me it appears off-yellow and I would have said it is/was a slug.
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