Two different games with the same story similar to Ni no Kuni.
Both games slated for 2016 release to coincide with series 30th anniversary.
The two games will still have the same core staff working on them.
Is being made for the PS4 and 3DS (probably New3DS)
DQXI is also coming to the NX (probably the PS4 version?)
PS4 version is developed with the assistance of Orca.
PS4 version runs on UE4
PS4 version is open(-ish?) world. Similar to DQVIII
3DS version is developed with the assistance of Toy Logic.
3DS Version presents a classic 2D Sprite style on the bottom screen.
3DS version will have 2D sprite battles + random battles when playing with the D-Pad and 3D battles when playing with the circle-pad.
Release targeted within the 30th anniversary year for the series, so within the fiscal year starting April 1st, 2016 and ending March 31st 2017.
Bônus: Para o NX vai sair o DQ 10 e 11 !!!
Fonte: http://www.neogaf.com/forum/showthread.php?t=1085666