I wonder if the fact that Anna looked "out of it" in most of those videos could ever make a difference. HKS strikes me as someone who would be caught with a shovel in hand over her gravesite. Not sure why that is, but I could see it happening.
I doubt it. She was pretty strong with her words in those interviews and they will have to be considered since they were done recently.
It could be that they give the mother her body but order that she is buried in the Bahamas next to her son (or on top of him) - She owns 2 side by side plots that will hold 4 coffins (2 coffins stacked on top of each other in each of the 2 plots)
It certainly seems to me that a case could be made that she hadn't been in any kind of a non-addled state of mind much at all in the past few years - with lots of video and photos for back-up.