Christendom 2.0

What exactly are criticisms of Christendom 1 that must be avoided in Christendom 2.0?

(1) It was sometimes repressive / opressive / co-ercive. Christendom 2.0 must be voluntary through the spread of the gospel by the power of the Spirit as rulers and people become attentive to the Word of God, join the church and ask for help to be obedient to God as public as well as private persons, citizens and governors.

(2) It sometimes forgot Christ for the sake of the -dom. Christendom 2.0 must remain distinctively Christians and never compromise or sell out to the world. It must remember the antithesis, the lack of neutrality, the absolute crown rights of King Jesus to be Lord of All if he is to be Lord at all and the sufficiency of God's inerrant Word for all areas of public and private life.

Anything else or are we all signed up for this project (a.k.a. gospel work, doing ministry, discipling the nations) already?