I would say that at least for now, there's no way we can determine whether or not our religion is correct. I've posted this same idea in several other places on this board, and no one has refuted it yet, so here it is, though in a shortened form.
There's no objective evidence on any side of the debate. There is only subjective evidence. Each person's choice to be an atheist, or a follower of a particular religion is based purely on subjectivity. Much as people are out there claiming that they "know" because they have "felt," unfortunately they are wrong. If they base their claims purely off of experience, then we know for a fact that it will be subjective. Two people can have the exact same experience, with one person saying "Wow! I felt God!" at the end of it and the other saying "I didn't feel anything" at the end of it. As long as this holds true, it means that even people who "know", don't really know, they just believe they know. Even if they are right in their choice of belief, and that belief is the only true one, they can never truly know that it is, because there is no objective evidence to prove it. Everyone makes a choice, and it's all based on themselves and their own minds. People who think similarly tend to group themselves together in certain religions.
This brings me to the ethics that are created by the above facts. Basically, all it says is, "Hold your beliefs with pride, and respect others' beliefs, because they are all based on choice and nothing else." They are not separated by right and wrong, they are only separated by choice and mental/emotional and other personal factors.