Just like Brandon, Dylan, Steve, Colin, and Matt before them, 90210‘s producers just can’t get enough of Kelly. So, my sources tell me, they’ve signed Jennie Garth to appear in five episodes on top of the six to which she originally agreed.

So now we’re gonna get the Kelly-Brenda rematch we’ve all been waiting for, right?

Erm, no. Though Shannen Doherty may return later in the season, for now it appears that the first four episodes she signed on for will also be her last (the second of those episodes airs next week). “They asked me to do a lot more,” she says, but “I’m in the middle of pitching a show, [so] I couldn’t commit to more than [I did].”

That being the case, the powers that be might want to reconsider ponying up the big bucks to get Tori Spelling back on board as Donna. Though the update’s second eppy kept it Tuesday’s highest-rated show with women 18-34 (2.9/8) and women 12-34 (2.5/7), its overall numbers took a hit opposite stiffer competition, including the premiere of Fringe.

What do you think? Does 90210 2.0 need Garth and Doherty to make the grade? Or are the new characters appealing enough to make the grade on their own merits? The comments section below is yours for the filling. (Additional reporting by Jessica Shaw)