Last year, the series opener of freshman drama Diaries pulled in the largest ever audience for a CW premiere with 4.84m.
Beverley Hills reboot 90210 is to come back for its third season, Top Model returns for cycles 15 and 16, Supernatural will enter its sixth season and Gossip Girl has landed a fourth.
CW shows awaiting renewal include Melrose Place, One Tree Hill, Smallville and Life Unexpected.
