Who knows? That is why I decided to go ahead and have children. Both of my parents suffer from schizophrenia and I was/ am a little terrified for my children. From what I have read the risks are very low. If you are both emotionally and financially stable then it is probably safe to have children and expect them to turn out very normal.
What I try to do already with my toddler is teach him how to deal with life's problems as they come. It is very important to me that he learns how to cope with his emotions and act upon them appropriately. I let him work out his own problems on the playground, but at the same time I am there to comfort him when he needs it. My grandparents raised me similarly and I think that contributes to why I haven't followed in my parents footsteps, genetics aside.