Masahiro Sakurai was recently invited to a Super Smash Bros. for Wii U live show, in Japan. During this show, he talked a bit about the upcoming Mewtwo DLC for Super Smash Bros. for Wii U and Nintendo 3DS, and explained that the development for it was pretty much done at this point.
Now, all that remains is for Nintendo to announce the release date, which should happen very soon. After all, players have until March 31st to register both Super Smash Bros. for Wii U and Super Smash Bros. for Nintendo 3DS on Club Nintendo, in order to qualify for the free download code for the DLC. The release, officially slated for this Spring, will probably take place soon after this date.
Here’s the video of Masahiro Sakurai making that “announcement”:
The Mewtwo DLC for Super Smash Bros. for Wii U and Nintendo 3DS will be released this Spring, worldwide.