"It seems to still be there, but sometimes it takes time to fade, that's true," Zygarde remarked.
"Hmmh... Zygarde, you would not go out of your way to point out these things if you weren't finding solutions," Diyem growled. "Get to the point."
"Due to Dill's circumstances," Zygarde said, "it should be possible to move him to Saltriv's nearby world without too many hang-ups. If by chance someone resurrects him in some way, he would be nearby to return... But there is still one problem with the arrangement. I believe Diyem already knows."
Diyem nodded. "Dill will effectively be choosing between Saltriv and that world... and his own. Yes, they are all dormant now, but at some point that can change. Such is the nature of eternity. If Dill is not around when that happens, they may not reunite. Dill would be a completely different person from their perspective; that is the point of ED-type worlds. Minimizing that problem."