How about this:
Babu finally returns from Pakistan for his revenge on Jerry. Jerry, fearing for his life, flees to Florida to live with his parents. George (who would once again become unemployed a few weeks earlier) would be left to house sit for his parents during their long-needed vacation. He would also get a job, but I'll come back to this point. Kramer's mother and Elaine's dad, both of which have only appeared once in the show's history, would meet and fall in love, and eventually get engaged. Realizing that Kramer would now be her brother, Elaine starts drinking and becomes an alcoholic. But Kramer would be delighted. He would light a celebratory cigar, while telling George the great news. This would result in the cigar burning down George's parents' house (flashback to earlier episode). When they return and discover their house is gone, they decide that all they can do now is to finally move to Florida (a possibility which has been considered a few times.) When the Seinfelds discover that the C's are their new neighbors, they don't want to live there anymore. They take Jerry and go back to New York, where they stay at Jerry's apartment. Jerry once again fears for his life, but his mother can't imagine why. (How could aanybody not like him?) Meanwhile, Elaine loses her job because of her drinking problem. Newman also loses his job after ticking off the wrong person. (I know postal workers never get fired-- just go with it). This causes him to get "disgruntled" and eventually committed. George would find a new job as a latex salesman, for a company called Vandelay Industries. Amazed by this coincidence, he lets it slip how he has been using this name in the past. His boss, Art Vandelay, is not amused by this, and transfers Goerge to work in their headquarters in Siberia. After this episode, he is never seen or heard from again. Meanwhile, Babu finally catches Jerry at home. He doesn't kill him, but instead he has devised a plan where he would steal Jerry's identity, and Jerry would end up being deported to Pakistan in his place. Leave this to the writers to figure out. Babu would move into Jerry's apartment and kick Jerry's parents out. Having nowhere to go, they return to Florida, where they are forced to move in with the Constanza's-- the very people they left Florida to get away from. In the end, every character would be living a life of misery-- except for Kramer, who's just Kramer as usual. The show would be 97 minutes long, preceded by a Bob Costas special, and followed later on by the Tonight Show, live from the set of Seinfeld, with special guests Jerry, Michael, Jason and Julia. One twist I forgot to mention-- Bania would appear at some point to announce that his pilot had been picked up by NBC and was given the best time slot they had-- 8:00 on Thursday's (central time) to replace an unnamed classic hit sitcom that was about to retire. The show would begin with an opening monologue, and the plot would subtly refer back to various past episodes (The Cabin, The Pilot, any episode mentioning Art Vandelay, etc.) This way, they could have a recap of the entire series without getting too sappy at the end. The part about everybody living the rest of their life in misery makes it a typical "dark" Larry David plot. Don't you think? Comments are welcome.
"Early to rise, early to bed makes a man healthy but socially dead." ---Yakko Warner