yes, as far as there being the little time after the thousand years "expire".
I don't think though that the Great White Throne "arrives at earth". I think the earth and heaven are destroyed (fled away). And then the Great White Throne judgment takes place.
11 And I saw a great white throne, and him that sat on it, from whose face the earth and the heaven fled away; and there was found no place for them.
12 And I saw the dead, small and great, stand before God; and the books were opened: and another book was opened, which is
the book of life: and the dead were judged out of those things which were written in the books, according to their works.
But your point about the little time between the end of the thousand years and the great white throne judgment is well made.