Queen Palm Damaged From Irrigation Problem

Q. During the excessive hot spell our irrigation failed while we were out of town. As a result, one of our queen palms lost all its branches. In spite of subsequent life support efforts it does not appear to be coming back. Is that too much to hope for? Is there anything we can do to help it recover or should we just mourn its passing? If so, what do you recommend we replace it with that has similar height and shade? The remaining queen palms will be wrapped for winter to keep them alive.