What does it mean by, "neither in the world to come"?

Matthew 12:32 And whosoever speaketh a word against the Son of man, it shall be forgiven him: but whosoever speaketh against the Holy Ghost, it shall not be forgiven him, neither in this world, neither in the world to come.

Are somethings forgiven "in the world to come"?

If so, is "the world to come" speaking about people in heaven, people in hell, or is it speaking about the thousand year kingdom?

There will be no need to forgive people in heaven, because they will have already been forgiven of their sins.

It is not speaking of people in hell being forgiven, as there are no references to that occurring.

So, is it speaking of people on the kingdom, e.g. those born during the thousand years?

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