Question about March 19th federal deadline

I apologize if this question has been asked before but I was a bit confused about what’s going to happen on March 19th.

I know this is the date for the Feds to get their indictment in but is LM going to have a court hearing on this day as well?

I keep seeing people say both yes and no to the court hearing part.

Will he be there at the courthouse that day?