You will have to wait till a judge is appointed in the court where your case is pending. If it is taking too long then, you can file for transfer of the case to another court where there is a judge.
Your son is below the age of 5 so, yours is a difficault case for custody however, considering the character of your wife, you have a good case on merit so fight it out very carefully and properly.
Nobody can guess the intention of your lawyer, you have to judge it yourself. If your lawyer is honest and intelligent then, continue with him otherwise you can change your lawyer.