Nah, it more like the Dark
Souls Crystal.
Oh that's really interesting. Particularly as Dark Crystal also has a plot relating to immortal beings and restoring mortality by searching for the titular MacGuffin. And a king who keeps on living by sucking the souls of his subjects. Well at least that's what I got reading the wiki summary. Gotta watch this.
Wonder what the ending for the series will be. Assume that someone finally reunites the dark soul in one place (the crown?) and fucks over the humans, who all become hollow and collapse, and something else takes humanity's place. The giants?
The most important thing for the game, if they are going with a connected world, is that there's no hub and no levelling lady. No matter if Miyazaki directs, team b, team c, whatever, just take away the hub and the rest of the design decisions will flow into another DS1.