Although it is way past the time to think of ongoing plot lines, here's one thread of a plot I thought of. It's called "The Curse."
There is a restaurant in town that has the greatest food, but it seems like bad things always happen to the careers of the people that eat there. Early in the episode, Jerry and Elaine are discussing yet another career that went down the tubes after eating at the "restaurant." Jerry laments, "But they have such great food..." Later, Jerry is offered a book deal by a publishing company. It will be about the story of his life. "But your life is about nothing," says George. "I know," says Jerry, "That's the best part. How hard can it be?" Jerry finds himself soon after eating in the restaurant. When he goes to the bathroom, he leans over the sink to check his teeth and consequentally wets the front of his pants. Then he washes his hands but discovers there are no hand towels and the dryer doesn't work. Standing in the middle of the men's restroom with wet hands out, Jerry grits his teeth. He has no choice. The hands remain wet. He walks out of the restroom and who else is standing there but the publishing guy. "Jerry, how are you doing?" He holds out his hand. Jerry hesitates, but reluctantly offers his yet wet hand. The guys smile fades as he grasps the hand and his eyes look from Jerry's wet pants front to the restroom door. "So, when do we get started on the book," asks Jerry. "I'll be in touch," the publisher says abruptly. As he walks away, Jerry wails. "It's not what you think, there are no towels." Now, anyone else want to continue the story with other plot lines? (PS--It's for fun, so critics need not reply!)