I have to wonder this...This is completely unwarranted and mostly just a nagging thought in the back of my head...but I have to wonder if they have some secret plans. I still think missing E3 essentially is not a great idea, but I wonder if before E3, we'll get a Direct talking about all their games coming up this year. They have to do it soon I think because they got some games they can push such as Tokyo Mirage along with Mario & Sonic Rio in just June alone. That way they get their games out there ahead of time and being talked about before E3. Then they can do their E3 plans of all Zelda which will be great, even if no Digital Event is happening.
Still feel like they'll do a surprise tease of the NX at some point next month. Not a full reveal, I'm guessing they are waiting for an event during the summer or I guess Tokyo Game Show, but like a name and a silhouette of the system could work if they do the before E3 Direct.
That might be just me hoping they aren't being so oblivious to their faults right now. They have their problems, but they are kinda having more than a few setbacks lately. Star Fox isn't doing well and they disappointed a lot of people by scaling back what they do at E3, when E3 is usually when Nintendo is at their best now.