Challenger 604 Crash March 2018

[ramble on]

Are there any answers out there to the cause of this crash that killed 11 women back in March 2018?
It occurred in a busy air route area over Iran between Dubai and Turkey.
I am surprised that there has been no follow up yet and am left wondering if it was caused by a wake wash encounter again.

[pilotguy1222]

The crew reported “technical problems” and had requested for a lower altitude. One witness also claims that the aircraft was on fire before impact.
No cause yet from fdr and cvr boxes.