Norton 360 Premier Edition – 25 GB - discontinued - please advice

Norton 360 Premier Edition – 25 GB  - This product has been discontinued by Symantec.

My Norton 360 Premier Edition 21.3.0.12 expires on September 1, 2014.

Please advice which Norton  product to buy to extend my subscription

Windows 7 Home Premium x64 SP1, IE 11, Norton 360 Premier Edition 21.3.0.12

Thank You

Rao