While the subject of your faith, or lack thereof, has not been discussed in your home for some time, don't think it's going to fade. Most likely, mom and dad are considering how they're going to deal with this issue before proceeding.
As for the sexual abuse, it's likely that at least some of the allegations have indeed been false. There are always those who seek to profit through lawsuits. But where there's smoke, there's usually fire. Several JWs have been convicted of criminal charges associated with the abuse. That is documented, and juries believed that the accusations were proven beyond a reasonable doubt. While sexual abuse is something that likely exists in all religions, the complaint about the Witnesses is that their rules are a factor in causing the abuse to be swept under the carpet and ignored. They have chosen to involve elders to deal with these problems in the first instance, instead of professionals (such as police) who deal with this on a regular basis, and are now answering in court for that choice.
As for going to school counselors, etc., with any complaints about your parents, it depends on the laws in your area. In most of the states in the USA, it's unlikely that you would be removed from your parent's custody for anything other than physical abuse or neglect (i.e., not feeding you,etc.). But any time you go to the authorities with complaints about your parents, you are rolling the dice and there's no telling what will happen. Although I really hated my JW upbringing, in retrospect, I would never have wanted to roll the dice with foster parents. It is certainly possible that my childhood could have been much worse than it was. It's another example of a choice in life where one must choose between the lesser of two evils.