Waiting on Hearing to Terminate Parental Rights

I have a hearing in the next couple of months to terminate the parental rights of my step child's mother. By the time the court date comes, it will be 2 years since he has seen her. She lives very close, there is not reason why she has been absent. My stepchild is autistic and I do not believe he remembers his mom anymore. I am preparing for this to be contested, but I have no idea if it will. I am waiting to be contacted by the court to start the investigation, and I am waiting for mom to be served. I am a wreck to say the least. Any experience anyone might want to share on this process would be great, it has been hard to find a place with any success stories...