That should be just DQ3. The original FC versions and the SFC remakes of DQ1-3
would be released in a compilation Wii disc on the 15th (and the disc would also contain preview stuff of DQ10 such as movies and the like).
Enix possibly released these screenshots alongside with those of the real DQ10 a few days ago and some people just didn't get it and had them mixed up.
Curious though, the screenshot mentioned connecting to the Internet to access one's party. If that's not edited then possibly these games would be enhanced with some network capabiloties.