Attorneys for sex abuse victims and the Diocese of Winona and Archdiocese of St. Paul-Minneapolis are expected to announce Monday a settlement related to multiple claims of abuse that date back a half-century, according to several reports.

Jeff Anderson and Associates, the firm preparing to take a case to trial next month on behalf of a man who claims he was abused by former diocesan and archdiocesan priest Thomas Adamson, announced on Sunday plans to hold an afternoon news conference Monday following a morning appearance in Ramsey County District Court.

The firm did not release additional details Sunday, but described the conference as featuring an announcement of a "historic child protection action plan." The conference will be the first time in decades Anderson will appear together with archdiocese officials, the firm said.

Multiple media outlets, including the Star Tribune of Minneapolis and Pioneer Press of St. Paul, reported Sunday evening that the plan will come as part of a settlement that will cover not only the unidentified man who brought the existing suit, but potentially hundreds of others who have claimed abuse at the hands of priests.

The agreement will include both details on financial arrangements with victims, as well as lay out a process to handle and report abuse claims in the future, the Pioneer Press reported.

It was not clear whether any diocese officials would be present at Monday's conference, nor did the firm make it explicitly clear that the diocese is part of the settlement, though multiple media outlets reported that the settlement would cover both the diocese and archdiocese. Diocese officials were not available for comment Sunday evening.

The agreement comes less than a week after Anderson's firm released more than 4,000 pages of documents from the personnel files of 14 Diocese of Winona priests credibly accused of abuse, and just weeks before the case is scheduled to go to trial.

In one of those documents, Winona Bishop John Quinn raised the possibility of the diocese facing bankruptcy as the result of existing and potential claims. Diocese officials have not denied bankruptcy as a possibility, but have said it has not been actively considered or explored and would depend largely on how many claims emerge in the next few years.

The files released detail the lives of 14 diocese priests who were “credibly accused” of abuse, the term coming from a nationwide study published in 2004 to determine the scope of clergy sex abuse that led to the lists. Collectively they have worked at 45 parishes in 44 cities across southern Minnesota. All but five are deceased, some have not been active in the diocese for decades and only one still lives in Winona. Their service at Winona-area parishes runs primarily from the mid-1950s through the 1980s, though a few continued to serve in some capacity into the 2000s.

This case was expected to be the clerical sexual abuse case nationwide to use the public nuisance theory at trial, which argued that the diocese and archdiocese engaged in negligence and created a public nuisance by not reacting more aggressively to allegations of abuse and failing to notify parishioners about the priests.

The lawsuit was filed in May 2013, the first filed under a law that opened up a three-year window for victims of past sexual abuse to file claims that were otherwise barred under the statute of limitations.