As stars prepare to take the steps for the The Met Gala on Monday, Page Six hears nightlife guru Richie Akiva’s famed after party is still taking shape. Sources tell Page Six that Akiva had been in discussions to have Madonna and Sabrina Carpenter host his famed bash at Casa Cipriani, titled “The Afters.” Both superstar singers have attended the party in previous years. Madonna and Sabrina Carpenter, shown here at Coachella, were in discussions to hold their Met Gala after party with Richie Akiva, says sources. Coachella/YouTube But just days ago, Madonna decided to go in another direction, taking the “Espresso” crooner with her. Madonna’s rep tells us: “She was never confirmed for any party.” Reps for Carpenter did not respond to request for comment.  Akiva tells us that the Material Girl simply had a different vision. Madonna, shown here with Akiva during his 2017 Met Gala party, has attended his event over several years.…