Emma Roberts has apparently replaced Ashley Greene in the fourth Scream film, although studio Dimension are refusing to comment.
Scream 4 is due to begin shooting in Michigan next month, with Kevin Williamson's script now completely locked, and other cast members being put in place. Hayden Panettiere and Rory Culkin have yet to be confirmed, but Lake Bell will definitely play a part in the production, along with returning cast members Neve Campbell, Courtney Cox and David Arquette.
I interviewed Roberts a few months back, and she looks about the right age for the part, if Sydney's cousin is supposed to be a college freshman. This film can't come soon enough - regardless of the casting. Wes Craven's My Soul To Keep should see cinemas in October.