I was just reading about this. :O!
This better not happen. Because if It does the dollar bill wont have "In God We Trust".
The dollar would look odd without "In God We Trust" on it. It's just become a part of it. :c
Then again, our currency is mainly just paper with pretty pictures on it, so it doesn't really matter much what they put on it (besides for cultural value, of course). The only reason it's worth anything is because the government says it is and we believe them. :o