Earliest we'll hear more information about the airlines fuel dumping incident in L.A.

What’s the earliest we might hear more information from investigators or authorities about the recent incident where a Delta airlines plane dumped fuel over a populated area? What is the process for an investigation like this (e.g. steps they have to take, limits on what they can publicly disclose, etc.)

The information I’ve read so far has me very curious about why those pilots made the choices they did. I’m not particularly bothered by the outcome (plane landed safely, nobody in affected areas was hurt), it just doesn’t match with how I’ve heard pilots (Captain Joe, Mentour Aviation on Youtube, other users here) talk about flight operations for these large aircraft.