The full texts of the proposed Prayers of Love and Faith can be found here.
Paul Roberts has written two blog posts, discussing the concept of blessing, and then analysing these texts, and comparing them with others from the Church of England and the Church in Wales.
…The House of Bishops’ draft of Prayers of Love and Faith that will be laid before the General Synod next month do not contain any prayer or statement in which a priest blesses a same-sex couple. God, however, is petitioned to bless the couple. So, indeed, the bishops have hedged their bets in a way which says “God, we’re not sure you approve of homosexual acts, so if you do, could you bless this couple? But we’re not going be doing it ourselves, just to be on the safe side…”