Second Marriage Without Getting Divorce Is There Any Chance To Got Second Mrg

My brother wife is illegal relationship with another person and left with him. And she come back again and say i want to live with you .My brother file a divorce case .he is living alone from 2 years and he was a singareni employee. He was tired daily for his works . Divorce case was running very slow . Without getting divorce is there any chance to have second marriage .