You guys know the real reason it was free right? To get as many people to buy it free as possible, so when Dragon Quest 8 bombs on the 3DS, Square Enix can blame us for the reason it didn't sell and point out that's why they're not localizing anything for us in the west unless the game has Final Fantasy in the title. Nintendo is publishing the title, Square Enix probably made their money from selling off the publishing rights for this version.
If you ask me, Square Enix should do this. Final Fantasy SaGa: Scarlet Grace. Final Fantasy: Adventures of Mana(then sell it at retail.) Final Fantasy: Dragon Quest 11. They'd sell to all the blind fanboys who buy anything that says Final Fantasy whether it's good or bad(Final Fantasy Explorers for example.) It's not like it hasn't worked before with Final Fantasy Legend and Adventure.