PS4 had two exclusives in March..and 100k difference in March isn't exactly a huge number in the grand scheme of things.
Considering current LTD is as below and looking at this holiday release schedule,
X1 has a real good shot of over taking PS4 after this holiday season is over.
Given that we are 99% chance going to see a PS4 price drop, it's not gonna happen (I know many like Bgamer90 predict a humongous October thanks to Halo 5, but imo most fans already have the console thanks to the MCC and the Halo 5 beta in late December 14). Note that I'm not saying that the XB1 won't win a single month this year (best chance could be the month before the price drop becomes effective) ... but closing the gap? Not happening imo.
About this month, I actually think that the numbers (hardware) are a tad disappointing for both MS and Sony.
MS had I think 2 killer priced bundles ($349) with free ACU/ AC IV for one and free MCC for the other (providing that golden opportunity to upgrade for 360 owners, particularly with the MCC being now, or so I hear, pretty much fixed).
Sony had 2 good to great exclusives following in the footsteps of 2 (not so great) ones in February, and many special offers during most of the month (trade ins at Gamestop and Bundles at Amazon, I think even Bestbuy had something at some point involving a free camera?).
March was also a 5 week tracking period, yet BOTH are down Month over Month -and- Year over Year.
If this trend continues, it might force both manufacturers to do a price cut sooner than expected to maintain market penetration imho.
On the positive side, Bloodborne did excellent, which is I hope a good sign for DLC and a sequel
390k is pretty darn close to 400k or even 430k (what Hardline apparently did on either PS4 or XB1).