It appears we will know more come January 6th, 2022.
Court link so you can follow ar home: https://wcca.wicourts.gov/caseDetail.html?caseNo=2020PR000058&countyNo=64&index=0#records
Gorn is the attorney for Luke.
Attorney Koch is the Personal Representative. "A personal representative or legal personal representative is the executor or administrator for the estate of a deceased person." They were appointed by the court over Gail Gygax's objections and Luke's agreement.
Attorney Johnson is Gail's attorney.
More when we have it, but this is an interesting development.