The sharp eyes of Siliconera found Japanese trademarks for The Seeds of Salvation and Luminaries of the Legendary Line last year. And now they've found a trademark for The Seeds of Salvation filed in the United States. This could point to a localization for the west of whatever this title is.
Their guess? A Dragon Quest game. I'm game. If we're lucky this will be a 3DS title. If not, well... who am I kidding? I'll even take a mobile title.