I honestly don't much trust that tweet. Either NoA saw the disappointment and has decided to hold onto the IP in NA, or Siliconera which has been trustworthy for a good long while was fed inaccurate information from what is usually a very trustworthy source (as they reached out for verification, they didn't simply trust the Unseen64 report). As it stands, none of NoA's actions reflect the content of that tweet. They haven't gotten the game rated by the ESRB, they pulled it from the future releases section of the Wii U eshop, they didn't show the game at E3 in any way, shape, or form, they haven't given the game a release date, and now they choose to say "oh, uh, yeah, it's still on the way, totally".
Be less contradictory NoA.
Siliconera also said that MK8 and Bayonetta 2 would be 1080p :|