In the prequel we're going to tell about the characters before Left Behind, and the book would end with the rapture instead of start with the rapture like the first one did.
I think one thing that's important to maintain is a sense of fear, always doubting yourself... a good dose of insecurity helps your work in some ways.
The man of the future may, and even must, do things impossible in the past and acquire new motor variations not given by heredity.