I’m not quite sure how the “shared sacrament” thing will work but I thought it was an interesting concept:
"…The Catholic Church has signed a new covenant with Protestant Churches which has been described by church leaders as one of the most significant events in Australia’s ecumenical history.
The covenant was signed on Sunday 11 July by National Council of Churches of Australia (NCCA), of which the Catholic Church is a member.
Uniting Church National Assembly President Rev. Dean Drayton told his Standing Committee that such a covenant “would not be possible anywhere else in the world”.
NCCA president Rev Prof James Haire said: "The US is working towards something similar, but that doesn’t include the Catholics.”
The covenant is wide and varied and includes things such as resource sharing, common mission and ministry, common sacrament and shared ordained ministers