I believe Imperium Christianity or Christendom or centralized organized Christianity served a valuable and necessary purpose, but it also served a particular form of human consciousness, which I will refer to here as heteronomy - the spiritual and material condition of strong traditional norms and values supported by stern and rigid external demands upon the individual, freedom, and self-determination.
Within this framework, loyalty and obedience are the highest virtues, while freedom is a lesser virtue that is quickly sacrificed for tradition, God, or the greater good. This form of consciousness slowly began to fade in the West around the time of the Renaissance and has been fading ever since.
I interpret this to mean that God desires that we abandon this form of consciousness and move toward greater freedom, personality, subjectivity and creativity. Moreover, I believe he desires for us to begin understanding Him on these terms.
People in the West have been moving in this direction for centuries, but it has been mostly a movement of "free from" God rather than "free for" God.
Without God, the shift toward greater freedom, personality, and creativity has collapsed back into a form of godless heteronomy, complete with its own inverted value system and external rigid demands.
Nevertheless, exchanging our current demonic, anti-Christian totalitarianism for a return to some form of Christian totalitarianism would do more spiritual and, potentially, worldly harm than good.
I don't believe God's ultimate plan for humanity is to revert to some kind of universalized worship of Him under the yolk of heteronomy complete with all of its rigid external forms and demands.
I believe God's ultimate plan for humanity involves humans becoming divinized co-creators with God, but the success of this plan is not up to God alone -- man has a say in it as well.
In this sense, I think Romantic Christianity has far more to offer man in this time and place than any revived Christendom ever could.