http://www.nintendo.co.jp/ir/pdf/2014/140730e.pdf

What sources have you shown to back up your claims?

The last reports of Wii U selling at a loss are from August 2013.

If the claims of it breaking even as of this March weren't true, the gaming media would have had a field day and there'd be an avalanche of articles from April or whatever onwards trumpeting that the system was still selling at a loss.

Also can't find any confirmation in that pdf that each console loses money.

The investor meeting was covering their financial results ending in March.  Iwata's answer was covering the period after the last fiscal year, not the period starting in May.

That was the source for the restructuring costs and previous claims.

The Q&A is here http://www.nintendo.co.jp/ir/en/library/events/140508qa/index.html

The quarter is from April-June.  All the report says is that the change happened after the quarterly financial briefing, so we know it was after the fiscal year (end of March).  The announcement was made in May; do you have a source that states that WiiU was loss-free during the whole quarter?

When he says "almost no loss" he's talking about a combination of existing Wii U stock as well as them having "to produce some more hardware units on top of our current hardware inventory". The loss could be from the old stock, built before they reached a break even point on production vs sale.

They mention a decrease in total assets in part due to a decrease in inventories.  If this was simply due to selling through it should be balanced out by an inflow of cash.  The decrease in total assets would suggest they lowered the value of their inventory.

Well it wasn't really an announcement made in May, it was an answer to a question asked in May.  Two different connotations there.  Iwata's answer also doesn't really suggest anything changed beyond it being a different fiscal year.  A significant portion of the 3.6m they intend to sell were produced last fiscal year where the losses were booked.  That's why he said "almost no loss" this fiscal year, if they were profitable it doesn't really make sense that they would be generating any loss.

These articles have been written since it launched, the console is pretty close to two years old now; if there was ever to be a comeback, we would have seen some sort of signs of it already. An expected but rather short sales bump due to the biggest title ever to release on the platform is not such a sign.
The whole "software sells hardware" reasoning is highly stylized and a question of definition anyway (since consoles entirely without games would, of course, not sell at all).
Besides; even the Wii U's arguably biggest hit has tapered out, which makes it puzzling that so many are still hinging or lesser titles to perform miracles. The "but it's the complete software library that gains traction for hardware sales after a while" sentiments are also of little value when the hardware remains poorly planned and unappealing to the vast majority of both markets.

I wonder how long this discussion will continue, I have no doubts that someone will write a similar piece at this time next year and I'll probably repeat myself to no avail (like now).