The Fosters Season 4 Premiere Date Revealed April 2, 2016 by June 20th! Season 4. We RETURN! Don't ms – what I believe – will be the most intense 2 part premiere that we've EVER had. #TheFosters — Bradley Bredeweg (@BradleyBredeweg) March 29, 2016 Renewed For Season 4 At ABC Family! Related Is Your Show Cancelled Or Renewed?Get free email alerts when serialized shows are officially cancelled, renewed or revived!