There was a mechitza in the NJ location last time. Having a huge crowd was inspiring and I joined a daf yomi over 7 years ago and look forward to this year’s siyum. The way the tickets are set up, there are men and women sections on each concourse so when davening mariv a mechitza will be needed. I’m sure the Agudah is working on it but I am concerned about security given the huge size of the crowd.