1. It appears that you are apprehending that she might lodge false 498A complaint against you and your family members. if she lodges such complaint police will not arrest you immediately as per supreme court direction up on the police not to make any arrest against the complaint of wife without conducting an investigation. So, you will be called by the police for investigation in connection with the complaint lodged by your wife. If police find any prima facie evidence in support of the complaint against you then they will register a FIR against you and you will get ample chance to avail anticipatory bail for all the accused. You shall have to convince the police about your innocence if you are ever called for investigation by the police against any complaint lodged by your wife. You are required to develop very good rapport with the Investigation officer (I.O.) of police in your own interest.
2. Once you get the AB, you can contest the 498A case fittingly by engaging a lawyer having expertise in this field.
3. If the complaint o9f your wife is found to be false, you can lodge/file a criminal complaint/case against your wife u/s211 of IPC for lodging/filing false complaint/case against you.
4. If police files charge sheet in the 498 a case, you can find out loopholes in the charge sheet and file a petition before the High Court for quashing the said FIR.