I believe Mr. Dolan has indicated several times that they will not likely pursue malpractice, alone, but some variation of wrongful death, violation of religious rights, probably a list of 47+ grievances they can come up with.
Whether any of them actually can be supported by fact is another question entirely. Dolan may not have to prove as much did happen as CHO has to prove what didn't happen. This is kind of key to thinking about the case.
An out of court settlement is always on the table, and I'm sure Dolan would be more than willing to negotiate one for the highest price possible. However, usually one of the terms of these settlements is non-disclosure of the terms: ie: the amount of settlement. Not that the information doesn't get out one way or another. There are family members that, to me (JMO) cannot possibly be relied upon to comply with a non-disclosure agreement, especially if the terms end up being substantially less than they thought they were getting.
I'll leave it up to you to fill in the blanks on that one.