The DeathPreDMPEvent is guaranteed to trigger on every player death before any other DMP events are triggered or any formatTag functions called. It's mainly intended for addons that need to do some preparations after the player has died but before any tags are formatted.

A related announcement: the first example plugin is ready! https://www.spigotmc.org/resources/dmpinventoryplayerinfo.34731/

A less related one: I'm planning to release the source code of both DMP and this recently released addon at some point in the future (hopefully soon)