Oh.
I guess I should've checked the FAQs in the NEA website.
To answer the burning (no pun intended) question of what happens to the exhumed remains
What will happen to the exhumed remains?
The exhumed remains will be cremated.
Can the exhumed remains not be cremated but reburied?
All exhumed remains from the affected graves in Phase 1 and Phase 2(a) have to be cremated.
What will happen to unclaimed graves?
All unclaimed graves will be exhumed, and the remains cremated and kept for three years before they are scattered at sea.
No shit, Sherlock. So if my son doesn't claim me.. uh.. my "exhumed remains", then I become a pollutant.