References to the first season:
Bree was introduced to the audience as a conservative woman and the audience said farewell to her as a conservative woman again. She is the only person not married to the same person at the end of the series. Bree started as being married to Rex Van de Kamp and then she ended married to Trip Weston.
Gabrielle and Carlos were introduced amidst a quarrel and they are shown quarreling "happily ever after." She starts the series married to Carlos and ends the series married to Carlos.
Susan is first introduced as a single woman with a daughter and leaves as a single woman with a son, a daughter, and a granddaughter. She starts out the series not married and ended the series not married.
Lynette bumps into Natalie Klein in the grocery store, which prompts her to accept the job, and this mirrors the pilot, with the same characters and situation. She starts the series married to Tom and ends the series married to Tom; she is also first shown yelling at her children and is last seen yelling at her grandchildren.