The vessel Atalante (carrying the 6000m capable ROV) has been stationary, approximately above the Titanic for about 2-3 hours, after going past the site to rendezvous with another support vessel early in the day first. There are 3 support vessels in line going ENE from the Atalante (ringed on chart) and one other support boat close by - these may be trying to fix the sub location if there is any acoustic data available to be processed but I'm not sure.
As the Atalante is stationary, I can only assume and hope that the ROV has been deployed. I don't have any other news. This is very difficult and a long shot but we can only pray that the rescuers have enough luck and success to recover these guys in time.
Map from Marine Traffic:
https://www.marinetraffic.com/en/ais/home/centerx:-49.943/centery:41.736/zoom:15