Indeed, the goal of my series was to bring those studies to the public. Studies that get close to explaining all we know about the subject. As the studies progress we can say for sure that we will be able to survive for 1-2-3 years. It's what happens beyond that we have no idea of. We don't know if people can give birth in space or if fetal development is natural. We have made a few experiments with animals on ISS but nothing will prepare us. When the first men went to Space there were plenty of scientists sure that the astronaut would surely die.
We will just have to make baby steps and find out what is going on.