Jenna Ushkowitz, Kevin McHale, Heather Morris and Naya Rivera Jenna Ushkowitz, Kevin McHale, Heather Morris and Naya Rivera

You know you're getting some good dirt on a show when it even catches some of its stars by surprise. That's what happened at Sunday's Glee session at Comic-Con, where creator Ryan Murphy hit Chris Colfer with the news that he may soon get to do "The Time Warp," the classic song-and-dance routine from The Rocky Horror Picture Show. A few other surprises? The Britney Spears episode may be a little dream-like, even if it isn't exactly a dream for one star. And get ready for more Madonna.

Here's what you'll be gleeking out to this fall:

1. Glee will pay respect to The Rocky Horror Picture Show: This news was a shock to even the cast in attendance — Naya Rivera (Santana), Jenna Ushkowitz (Tina), Heather Morris (Brittany), Kevin McHale (Artie), Colfer (Kurt) and Amber Riley (Mercedes).  When they were asked by an audience member what songs they still wanted to sing on the show, Colfer piped up, "The Time Warp" — and practically got his wish on the spot. "Well, funny enough Chris, we are doing a Rocky Horror episode," Murphy said.

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2. "The Power of Madonna 2" is going to happen: "Madonna was thrilled with the [first tribute] episode," Murphy said. "We don't know when we're doing [a second] but we will at some point do it." The "Power of Madonna" took 12 to 13 days to shoot "and went over budget very early on. But I said to the studio and the network, 'Do it for Madonna. C'mon.'" (Did you know? Many of the props used in the Sue Sylvester rendition of "Vogue" were used in Madge's original music video. Murphy said they were found in an old prop house.)

3. Tina, Mike and those other characters you don't know so well will get more face time: Murphy said it's what he wants — and what the fans have told him they want: "[Everyone] pops so much, I personally want to see a whole episode of Brittany. I want to see more Artie and Tina," he said. "The second season is designed to be much more intimate, and it's from the feedback we've gotten really. [Viewers] want to see more of the people they've grown to love."

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4. Even though there'll be more Artie and Tina , it won't be Artie with Tina: McHale looked just as shocked — and possibly upset? — as some in the audience did when Murphy dropped this bomb: "We're writing an episode that I really like where we find out that Tina has fallen out of love with Artie and in love Mike." Awww, it's over before it really began...

5. More relatives will make an entrance: Kurt's dad (Mike O'Malley) was recently upped to a series regular, and fans have grown to love Finn's mom. (Quinn's parents? Jury's out on her mom, who came around in the finale.) Next, viewers will meet Rachel's two dads and Brittany's sister. "I have a feeling she has a very smart older sister," Murphy said. Added Morris: "I imagine my parents work for NASA." Murphy also confirmed that Idina Menzel will return as Rachel's birth mom, Shelby.

6. Mercedes is taking Glee to church: Colfer's eyes got very large when, a beat later, Murphy revealed, "Kurt gets to go with her."

7. Not everyone will be excited about singing Britney Spears: As exclusively reported, the episode will be about our favorite daffy Cheerio Brittany, who will get to sing at least two of the pop star's tunes. But the idea of paying tribute to the ex-Mrs. K-Fed doesn't excite Matthew Morrison. The actor once said in an interview that the one artist he hoped wouldn't be included in the Glee songbook was Spears. So Murphy decided that Morrison's Mr. Schuester will be the one saying, "I don't want to do Britney, I don't want to do Britney." As for the episode itself? Murphy said, "We're doing it in a very fun hallucinogenic way."

8. Speaking of Brittany, she may be getting hot and heavy with a fellow Cheerio: Which one? Duh, Santana.  Maybe. "We're actually writing an episode where we're debating if they should kiss," Murphy said.

9. Kurt's going to get a sweet boyfriend: No devious Jesse St. James types for Kurt. "I think he should have a boyfriend and they should be prom king and king," Murphy said. "I think that's an important thing to put out in the world. I want to see what that relationship is like. I want to see what [Kurt's dad] thinks of that relationship."

10. The post-Super Bowl episode will be another tribute. To who? Murphy's not saying yet. Producers are still negotiating a deal.

The obvious question is, who should sing "Touch-a, Touch-a, Touch-a, Touch Me"? Nominate your favorite couple here, Gleeks.