Dana Delany could become a desperate housewife
Spoilers after the jump!
Ausiello says that the role Delany is in talks for is that of Katherine a "conservative Republican with an all-American wholesomeness and a mastery of passive aggressiveness." However, other information about the role has Bree and Katherine square off about a recipe. In that scene, it looks like they know each other but not in the family sense. Though it is possible the role was re-written or that they are indeed long-lost sister who may not have known about each other's existence. In any case, the role of Katherine is very similar to Bree and is said to be a regular one, meaning she would be as important as Susan, Gaby, Bree, Lynette and Edie.