I believe that both PS4 and One will pass Wii U eventually but I think it is an impossible goal for them to pass it by the end of this fiscal year. Sony plans on shipping 5m units in that time frame and with One launching in less countries and having lower pre-orders, I think its safe to say Microsoft doesnt plan on outshipping them this fiscal year but for the sake of argument lets say they plan on shipping 5m as well.

As of the end of June, Wii U has shipped 3.61m units with only 160k being from this fiscal year. I assume Nintendo has shipped more this quarter due to games like Pikmin 3, Luigi U, Wonderful 101, Scribblenauts, Splinter Cell, Disney Infinity and also a price cut at the end of the qurater to go alongside a new bundle. I think anywhere between 190-290k shipped is a realistic figure putting the total at 3.8-3.9m by the end of September.

Lets fast forward real quick to the last quarter which is Jan-Mar. If by some chance the holiday line up and price cut dont raise the baseline by much and only ships 200-300k this quarter that would bring the total to 4-4.2m shipped. Does anybody truly think that Nintendo will push out less than 800k-1m over the holidays?

From Oct-Dec Nintendo will still be fresh off the price cut and has a strong line up of high quality exclusives like Wind Waker HD, Wii Party U, Sonic Lost World, DKC Tropical Freeze, Wii Fit U, Mario & Sonic Olympics, Wii Sports Club, Mario 3D World and a few big multiplats like Assassins Creed 4, Call of Duty, Watch Dogs, Batman Arkham Origins, Skylanders, Just Dance 2014 which are a nice addition to the big exclusives. Also Nintendo is sure to start a new advertising campaign and retailers will have tons of holiday sales.

I just dont see anyway possible that Nintendo doesnt ship over 5m by the end of Mar, can anyone offer me a logical reason why they feel PS4/One will be able to pass it by then?

I'll await judgement about the WII U's demise after I see how super mario 3D world performs.

If it doesn't drastically Improve the situation then it's pretty safe to say it's doomed.

Edit: To be a little more on topic I'll add, like I said if it doesn't improve then I could see the PS4 reaching ahead. 

Logical reason?  You cannot ask for that which does not exist.

I have no doubt both will pass the Wii U in due time but likely not before the fall/winter of 2014.    By March would simply require cirumstances that aren't based on current knowledge, historical trends, expectations and good old logic.

Nope too early, I have no doubt the PS4 will pass the WiiU but by March is too early, The WiiU would have sold more than 5 million by march.

I think it'll pass the WiiU late 2014.

Why are u putting the pressure solely on 3D World? I just listed 8 exclusives that are sequels or remakes of multimillion selling franchises. In order for Wii U to fail to reach 5m by the end of this fiscal year it would have to sell less than 2/3 of what Vita did from Sept 2012-Mar 2013.

Also u didnt provide a reason why u think its possible

You realize that super mario 3D has the best chance at lifting the WII U from its woes before march 31st, right ?

The reason being is that franchises like zelda and 3D mario is dropping off and plus wind waker wasn't one of the best zelda game I've heard.

History my dear Watson... History, ps1 and ps2 kicking Nintendo's ass is what I use to back my argument anything else is invalid

No, one single game isnt going to make or break a console, it takes a steady stream of high quality software. 3D World may very well be the biggest title of all those games listed but it cant and wont do much on its own.

What makes u think 3D Mario and Zelda are dropping off? 3D Land is on track to be the best selling 3D Mario ever and Galaxy sold similarly to Mario 64 and Galaxy 2/Sunshine sold close to the same. Twilight Princess is the best selling Zelda game if u include Wii+GC versions. If ur basing it off of Skyward Sword then that is also false since the second Zelda game on any console sells significantly less than the first, Skyward Sword has sold similarly to Majoras Mask and Zelda 2. OoT 3D is a remake and has sold like 40% of the original, if Wind Waker HD can sell 40% of the original then that would still put it around 2m.

You probably need to study history more intensively.  

I think PS4 will for sure outsell Wii U in lifetime sales but by Mar 31 is rediculous and alot of people are claiming it will. What makes u think Wii U will only sell about 1 million units this holiday?