Will Christ manifest himself and end history? Assuredly yes, if you believe in him and what he said. When will this happen and how? Even in this atomic age, we still do not know.
The Solemnity of All the Saints reveals the relationship between who we are and who we should become, between time and eternity, between ourselves and the saints.
The cross of Christ appears as his abandonment by the Father. Our crosses do as well, but it is only in the cross that we discover that God is abandonment and outpouring love.