According to Korbi @ Zap2It.com, Shannen and Jennie will reportedly have many scenes together and will be poking fun at their real-life rivalry. That should be interesting!

Is it really true that Tori Spelling is pulling out of 90210? Too sad!! -Char
Yeah, I guess the network and studio offered Shannen Doherty and Jennie Garth more cash per episode and Tori wasn't having it. However, if the show is a hit this Fall, things could turn around. We'll have to wait and see. In the meantime, we'll have plenty of Brenda-Kelly tension to keep us happy. I'm told that Doherty and Garth are down to make fun of their reported real-life rivalry, and they'll definitely have several fun scenes together. Scary how excited I am for this...

According to E! Online's Watch With Kristin:

Rebecca in Austin, Texas: What's the latest on your news about Shannen Doherty on 90210? Is she signed yet? And do you really think they'd put Jennie and Shannen together again? You can't be serious. That would be crazy!
Um, you mean crazy good. Inside sources tell me today the CW is working very hard to get Shannen's deal done ASAP so they can shoot the scene with her and Jennie. So yes, it does look like it's happening (barring any last-minute glitches or red-dress scandals), and yes, they most definitely do want Shannen Doherty and Jennie Garth together onscreen—and I'm hearing both girls are open to it. Which leaves only one Q: Screening party at my house or yours? I'll wear my fancy acid-washeds for the occasion!

Numerous gossip blog sites have been reporting that Shannen Doherty has met with producers of the new 90210 to talk about the possibility of coming back to West Beverly High. Currently, nothing is set in stone yet, but it has been rumored that there has been talks and she's talking to producers about it:

From PerezHilton:

Shannen Doherty is in talks to reprise her role as Brenda on the new 90210 spin-off.

YES!!!!!!!

The producers behind the new show recently met with the actress to discuss gauge her interest in the possibility of returning to West Beverly High.

Shannen Doherty is in talks to star in the new spin-off of 'Beverly Hills 90210', it has been claimed.

The 37-year-old actress recently met producers of the series to discuss the possibility of reprising her role as Brenda Walsh.

However, Shannen will not commit to the role until she has seen her character's storyline.

According to OK! Magazine, Lori doesn't seem to think Shannen will come back.

Jennie Garth may want Shannen Doherty to return for the 90210 spinoff, but Lori Loughlin sure doesn’t.

“I don't think Shannen will. No.” the actress tells OK!. “I don't think anyone wants to touch that.”

But the show will embrace Tori Spelling with open arms. Donna Martin’s real-life alter ego has been angling for a role in the CW series since the news was announced. But Tori, who’s due next month with her second child, may need to take a short maternity leave first.

“I think they are waiting for her to have her baby and then they're going to - there's definitely a role for her though in the pilot, like a small little cameo thing which will be fun,” Lori says. “But then I think they'll have her back.”

The 43-year-old has also heard “rumblings” of Luke Perry returning, but claims to not know much else. Having already talked to Jennie about the show, the star now can hardly wait to start production on June 25.

“I'm so excited. I've seen a script. It's good," she says. "I really like it. It's definitely the contemporary 90210. It's touching on what teenagers are going through nowadays, which is a little bit -- I don't want to say faster, but they are definitely exposed to more at this time. Kids today, they have a lot to handle. They grow up so fast.”

So according to TVGuide, Jennie Garth has booked a recurring role on the new 90210 remake and now there are rumors of Tori Spelling joining as well! Now I know 90210 has been behind Shannen for more than 20 years now, but wouldn't it be great to see Shannen guest star on this show? It'd definitely attract a lot of viewers, I think!

It also looks like Perez Hilton is campaigning for Brenda/Shannen to come back to Beverly Hills! There's a link to a petition @ the Perez Hilton website!