According to both Al-Hayat and the BBC, Ayatollah Sistani has now (through his aides) called on Iraqi Shias to vote “Yes” in Saturday’s referendum.
The Hayat article notes in addition that the Sunnis of Iraq are split between those in favor of and those opposed to the constitution draft. It says that the Association of Muslim Scholars (still opposed) has called on the Iraqi Islamic Party (now recently supportive of the latest draft) to reverse its position again. The Hayat piece says that IIP offices in Mosul were attacked, and one of its members was killed…
All, sadly, in line with what I was writing here.