Confession, Uncircumcised Heart, Land Debt, and Covenant Remembrance
Where this fits in the story: The closing answers the curse/exile sequence with confession, humbling of the uncircumcised heart, and YHWH's remembrance of the Abraham/Isaac/Jacob covenant.
Where Scripture takes it next: 1 John 1:9 shares confession language but does not cite Leviticus 26.
Evidence boundary: The passage promises covenant remembrance and denies utter rejection/destruction in enemies' land; it does not give an immediate return timetable after confession.