This from from an MTV news story about Ashlee Simpson joining the cast of the show:
In addition to the rumor that Locklear will be back for more backstabbing fun, “O.C.” alum Mischa Barton is rumored to make her return to the small screen for “Melrose Place.” If she does, EW.com reports she’ll play the good girl — either med student Lauren or schoolteacher Riley.
“This is news to me,” a rep for Barton told MTV News. “She’s just returned from Europe and heading there again for contractual commitments, but I know she has been reviewing scripts for pilot season, though I haven’t heard of anything specific.”
Huh. That is literally no help. You think the rep would ask Mischa about it. Kind if weird. But she is lookign at scripts so thats a good thing. Hopefully she does it.