Worship in eternity will oft be fixated on the cross and in that the revelation of the monumentous experience of God being forsaken by God at the cross. The thankfulness which shall be experienced in the heart could and should be entered into now when the revelation of the depths the Lord went to in sacrifice for our redemption enters our hearts.
Consider the infinate capacity for the Love the Father has for the Son. And the depth of love the Son has, coming from eternity past. The deeper in love with someone your are, the more power they have to hurt you. This moment in eternity at the crucifixion is an emotional wound they both carry and it was so that they could bring us into their fellowship.