Ann: S&P DJ Indices Announces March Quarterly Review, page-36

Trying to settle an argument here....can anyone help? With regards to this rebalance taking effect from this Friday 18th March, is much more volatility expected from then on, due to more institutional exposure?

S&P Dow Jones Indices Announces March 2016 Quarterly Rebalance of the S&P/ASX Indices
Sydney, March 11, 2016: S&P Dow Jones Indices announced today the changes in the S&P/ASX indices, effective after the close of trading on March 18, 2016 as a result of the March quarterly review. At this rebalance the entire S&P/ASX index hierarchy is reviewed, including the All Ordinaries Index.