Has the cast of "Lemony Snicket" been chosen?

Put the rumour radar on, but never the less some may be intrigued by a casting murmur over at Aint it Cool for "Lemony Snicket".According to the site, Joan Cusack is up for Aunt Josephine, Emma Thompson is up for Justice Strauss and Johnny Depp is tipped for the part of Snicket himself.