With Glee’s season finale airing this week, fans (or Gleeks) of the Fox hit are dying to know: How will it all end? Executive producer and writer Ryan Murphy is already looking forward to next fall. “Quinn gives birth in the finale, so that’s a big thing. But the question is, what happens to the baby? That’s one of the cliff-hangers,” Murphy told In Touch at the 9th Annual Chrysalis Butterfly Ball in Brentwood, Calif., on June 5. The cheerleader was planning to give her daughter (with fellow glee-club member Puck) up for adoption — but perhaps she has a change of heart? Fans won’t find out until after the summer, when they can also expect serious fireworks. Murphy calls the first four episodes “as big as the Madonna episode! Big, big, big! We plan to be coming out of the gate really big!” One hint? Jennifer Lopez will join the list of prestigious guest stars like Neil Patrick Harris, Olivia Newton-John and Josh Groban. “J. Lo will be on the show!” Murphy announced. The Glee mastermind also added that he “loves the idea” of doing a tribute episode to Britney Spears, in spite of co-star Matthew Morrison’s comments about hoping the show “doesn’t go along that route” (Matthew later denied having made the comment).