Hi, I would like to upgrade my family plan to have unlimited talk and text. My plan has 1 smartphone (iPhone) and 1 basic phone. I don't want to upgrade my phone just yet because I would like to wait for the new iPhone 6. My question is if I upgrade my family plan to have unlimited talk and text without upgrading my phones, can I upgrade later when the new iPhone 6 releases at a discounted price? Thanks very much for the replies back!