I would love to believe that when I die I will live again, that some thinking, feeling, remembering part of me will continue. But as much as I want to believe that, and despite the ancient and worldwide cultural traditions that assert an afterlife, I know of nothing to suggest that it is more than wishful thinking.
Any assertions about an afterlife are unfounded and spurious. Agnostic or igtheist are the most honest stances for what happens after we die.