I have heard that Pope Francis said the Catholic Church would not impose any preconditions for the unity of the Catholic and Orthodox Church. Is that true? And if so what does it mean for the Church?
Indeed, those words were spoken, and the complete text of Pope Francis' speech is supposedly included in a news bulletin on 2014-11-30 from Vatican Radio. He mentions doctrinal agreement as necessary, so interpretation of his statement may not be clear without further discussion of which doctrines must be agreed to. Among other things, he stated
All of this precedes and always accompanies that other essential aspect of this journey, namely, theological dialogue.
I want to assure each one of you here that, to reach the desired goal of full unity, the Catholic Church does not intend to impose any conditions except that of the shared profession of faith.
The one thing that the Catholic Church desires, and that I seek as Bishop of Rome, “the Church which presides in charity”, is communion with the Orthodox Churches. Such communion will always be the fruit of that love which “has been poured into our hearts through the Holy Spirit who has been given to us” (cf. Rom 5:5), a fraternal love which expresses the spiritual and transcendent bond which unites us as disciples of the Lord.