There have been several developments surrounding the Temple Mount.  It appears that there is a secret room at the location where Jews pray on Yom Kippur and the Tisha B’Av.  Jews have been praying in the room since 1971.  The room, called Machkamah, is located on the western side of the Temple Mount between the Chain Gate to the north and the Western Wall to the south.  I found a blog dated July 20, 2010 in which YMedad briefly discusses his participation in prayer services on the Tisha B’Av in the Machkamah.

The former head of the Israeli Shin Bet Avi Dichter recently visited the Temple Mount and discussed the history of the tensions and status quo at the location.  Among the various events that have happened since the founding of Israel, Dichter addressed the Al-Aqsa Mosque fire in 1969, the Second Intifada that began after Ariel Sharon visited the mount in 2000, and the murder of two Israeli police by three Israeli Arabs in July 2017.  This happened after the individuals snuck weapons onto the Temple Mount and into the Al-Aqsa Mosque.  Dichter argues that the Palestinians use the Temple Mount as an instrument for conflict, that Israel should assume presently there are stockpiles of weapons at the location, and that Israel must do all it can do to prevent another uprising at the location and from allowing the Palestinians from claiming exclusive rights to the entire mount.     
    

Chain Gate viewed from the Temple Mount (Summer 2017) LFL

Israeli Police shields used during the Second Intafada in 2000.  These were on display near the Mughrabi Gate, which I entered in 2017 in order to reach the Temple Mount.  I heard that they were placed at that location as a reminder of the conflict in 2000. 

Avi Dichter (former head of Shin Bet) on the Temple Mount (photo: Oren Ben Hakoon)