Here's one thing that got me wondering about a future storyline and I hope I'm wrong.
When Lynette popped those pills, it got me thinking that she may have a "pill addiction storyline". So far, Lynette is the only one that doesn't have a "deep dark secret".
Mary Alice had one that we're waiting to find out. Susan burned down the house, Bree has her marriage problems, and Gabrielle is doing the gardner. If they were to go that route, I just don't see how they could manage the humor / drama type storyline they pull off.
It's been a long time since a show has kept me on the edge of my seat waiting to see what was going to happen.... And it's been a long time since I've "cared" about what happens to the characters on a show.