Complex issues arise in this article including NAGPRA concerns and possibly an unconstitutional taking without compensation by the government.
It seems like the Navajo Nation wants swift and immediate action on their lawsuit and the return of remains and artifacts but it's unlikely their going to get it. The governement has too many hoops to jump through and too many regulations to consider. I'm sure the NPS archaeologists want to do the right thing but their hands are likely tied.
Looking forward to see how this turns out. Could have implications that impact parks across the nation.