Ha, Nintendo has been hating on MMOs since I can remember. That's nothing new.
Wait a minute...
"Its upcoming Nintendo Land and New Super Mario Bros U both offer offline multiplayer only."
"upcoming Nintendo Land offline multiplayer only."
Anybody else seeing the huge waste of potential here, or is it just me? Oh and that Metroid game isn't confirmed at all. The very same article it links to at the end clarifies that.
About Unreal Engine 4, it looks like it can be ported to WiiU, but Epic won't do it. Looks like devs will have to port the engine themselves if they plan to support WiiU. That doesn't sound very good...