They could invert the ending of the YOLT novel. Like Kissy, Madeleine gets pregnant but after an attempt on their lives, she leaves Bond to protect the safety of their child. "She's smarter than me, she knows how to hide." Then Bond realizes he must eliminate Blofeld if he's ever to have a normal life and get Swann back. But, in so doing, he's knocked into his amnesiac state during the castle battle. Swann hears of his success eliminating their enemy and sends a card or message (ala Gala Brand in the novels.) At this point, Madeleine leaves to raise her child and makes the choice that she cannot be with Bond, his personal life forever linked to his deathly profession much like her father's. Even though James is "a good man", too much death grows in his garden like an undertaker's wind sweeping over Jamaican islands.
Bond 25 "The Garden of Death" ends with CraigBond therefore having fulfilled his promise to protect Mr. White's daughter by eliminating Blofeld, only the tragedy is that he doesn't remember this redemption, or the one woman he finally saved. Bond struggles to remember and pursues this Proustian lead of Madeleine's message only to fall into a trap by SPECTRE, whose new leader, Irma Bunt, seeks revenge using Bond's amnesia to brainwash him in their plot to assassinate M. Bond 25 ends with "James Bond Will Return" now taking on a foreboding twist.
Bond 26 "The Undertaker's Wind" begins with a new Bond actor, changed physically and psychologically at the hands of his enemy, sent to MI6 to carry out the assassination attempt on M. When the plot is foiled, Bond recovers and is sent on a mission to finally destroy SPECTRE and its new leader once and for all. Having defeated their attempts at Counter-Intelligence, Terrorism, Revenge, and Extortion, James Bond Will Return in Bond 27 "The Property of a Lady" where he is restored/resurrected as secret agent 007 of her majesty, the queen, and future standalone missions, such as Bond 28 "Risico", of which there is much in this business.
Meanwhile, somewhere out in the world Madeleine watches her son play in a garden.