I believe that Lorelai is now married to Luke and the two still live in Stars Hollow. Luke and his daughter have become very close and she has realized how overbearing her mother can be, she tends to like Lorelai better.
They haven't had any kids, seeing as they each already have one they don't need any more. They are content with their relationship together, the only bump is their Friday night dinners.
Chris has moved on with his life, getting higher up in his job and Gigi and him have a great relationship, even though she can be a bit bratty at times. He no longer bothers Lorelai, though the two are still connected because of Rory.