According to EW's Ausiello he reports that Shannen Doherty will be back for one more episode in May! Unfortunately, she won't be sharing any scenes with Tori Spelling.
Question: Do you hate 90210 or something? Give us some good scoop! -- Sam
Ausiello: Hate it? The show is awesome! Just kidding, I haven't seen an episode in months. But several trusty sources tell me it's about to get really good, so I'll probably start watching again next week -- if for no other reason then to prep for Tori Spelling's arrival in March. Speaking of which, I hear Tori's bestest frenemy, Shannen Doherty, is returning for one more episode in May. Could this be the Brenda-Donna reunion we’ve been waiting for?! Sure couldn't! I'm told the two won't be sharing any scenes. Bum-mer.