I’ve done this forever!
Luke and Lorelei, together, (of course) and with a set of twins, toddler age. Rory being pregnant, far enough along to actually see the baby bump, with Jess’s baby. She being either a disheveled, anti-men, living on her own, woman. Or, same scenario but with her being in a relationship with Logan, and the baby being a result of a hot and steamy affair with Jess. As for everyone else, I’m not sure of a plot for them.