That seems way too optimistic. That's less than 30 years away. Think of all of the devout religious people you know, think about how many of them are likely to still be around in 2041, and ask yourself how many of those are likely to have abandoned religion in that time. Based on the ones I know, I wouldn't even put the number at 25%, much less 100%.
"Well, evolution is a theory. It is also a fact. And facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that explain and interpret facts. Facts don't go away when scientists debate rival theories to explain them. Einstein's theory of gravitation replaced Newton's in this century, but apples didn't suspend themselves in midair, pending the outcome. And humans evolved from ape- like ancestors whether they did so by Darwin's proposed mechanism or by some other yet to be discovered."
-Stephen Jay Gould
-Stephen Jay Gould
