An Urgent Question was asked in the House of Commons today (Monday) about this.
Edward Leigh, Conservative MP for Gainsborough, asked an urgent question in the House of Commons on Monday 10 December 2012 on whether the Secretary of State would give a statement on same-sex marriage in churches.
Minister for Women and Equalities, Maria Miller, responded to the question on behalf of the Government.
You can read the full transcript here.
You can watch the video recording via this page. The item began at 15.31 and ran for 45 minutes.
A more convenient video recording is now available here: Government to outline same-sex marriage plans.
The Minister announced that she would make a full statement tomorrow (Tuesday 11 December) that will set out the Government’s response to the recent consultation on how to allow same-sex couples to marry. The timetable for Tuesday is here but, at the time of writing this post, the page does not show this matter as a separate timed item.
Update I understand the announcement will be made at 12.30 today.