the star you see shooting across space at the end of the credits
"I wonder what we will see in the final days" (Rolf, PSII)
"There's no peace without sacrifice" (Ortega, DQIII)
There are similarities with PS2. Basically the hero dies, but... the sun rise once again (I'm not saying our PSII heroes died but it seems there's a traditional thing here and note that DQIII came before PSII).
The tradition continued through PSIV (again showing a "sunrised" Mota but browner this time)... and PS:gen2 (the remake) as well.