God created Time and does not experience it as we do. There is a school of thought that says that, for God, all times are _now_ -- there is no difference between past, present or future. All are equally "present" to Him.
In this frame, the Crucifixion is happening _now_. Jesus, as a man, is suffering and dying at this very moment. As humans experience time, He always will be.
It seems to me that, for any entity, this eternal experience is a very significant sacrifice.
An entity that experiences all of time at the same time would be pretty used to suffering, as all suffering that has ever and will ever occur is experienced by this entity all the time, so hardly a sacrifice. Jesus's suffering is a small drop in an ocean of suffering experienced at all times by such an entity.
In this frame, the Crucifixion is happening _now_. Jesus, as a man, is suffering and dying at this very moment. As humans experience time, He always will be.
It seems to me that, for any entity, this eternal experience is a very significant sacrifice.