"Forever" is an abstract concept relative to the state of the universe. Nobody can "live" forever in our current state of being. One might eventually become immortal in the sense of perpetual existence dictated by the length of time the universe is stable and through various modes of storing consciousness.

Much of the answers to this question must come with additional definitions to the context and concepts of how we determine aspects to existence. What do we consider "living"? What is immortality to us? Can we can transfer and/or copy our consciousness into other states? How will our evolution be dictated?