Hello and hope you are doing well.
Understand your predicament, but it is difficult to predict the prognosis. As I understand, to begin with it was ischemic stroke. Sometimes you start with a clot, take anti-coagulants and end up with a bleed. The etiology of the stroke is important. Also, the recovery will depend on the area of the brain affected and the extent of injury. If the "stroke" is stabilized, and there is no further bleeding or clotting I would remain optimistic. Also, as the post-operative swelling and inflammation subside, his symptoms should improve. Please don’t hesitate to discuss in detail his prognosis with the doctors treating him, based on this discussion, you can plan for further course of action.
Hope this helped and do keep us posted.