I read in a magazine today that the final episode will feature all four main characters being killed when a tycoon buys the building and blows it up.
BUT, then things get quirky as the characters reappear in HELL, so that they can annoy each other for all eternity!
It sounds wacky enough to me. No word on what happens to Newman (or, for that matter, Babu, who would be my choice if they wanted to kill Jerry off at the end).