Calling it now: October NPD will have a 1% or less difference in sales between the PS4 and XB1.

Well, if you ignore that the PS4 has been outselling the XB1 regularly by 3/1 and 2/1 and the PS4 is currently still ahead, then yes.

The biggest issue of the Sony bundle plan was the lack of Destiny LE.
People are starving to get this bundle in hands.
If they put more on the market it will be the best selling bundle for sure.

The bundle is still available from other retailers, just not Amazon currently. Says they get new stock on the 26th. 

Yes, and before that it was the 14th, then the 16th, then the 20th ...

The first half of the month is all PS4. So far PS4 is still leading for the month. But this Halo bundle is now closing in to take the lead. I don't know if the first 2 weeks were enough for the PS4 to already close the "pre order gap". If they did then right now PS4 will be ahead and likely win the month.

But if you look at how the $500 bundle selling so much better than the $350 Xbox One bunble, it is most likely that those are from hardcore fan buying a second Xbx One. 

Those hardcore fan might go crazy in the next 2 weeks and push more hardware then most of us expected. it is already kind of crazy there are buying a second Xbox One just because it is Halo Limited Edition

Monthly update:

#23 PS4 The Last of Us Remastered bundle (up 3, overtakes the PS4 Limited Edition Destiny bundle)
#26 PS4 Limited Edition Destiny bundle  (down 2, overtaken by the PS4 The Last of Us Remastered bundle)
#30 PS4 Limited Edition Star Wars Battlefront bundle (down 1)*
#36 XB1 Limited Edition Halo 5 bundle (no movement)
#40 PS4 Uncharted: The Nathan Drake Collection bundle (up 9)
#61 PS4 Limited Edition Call of Duty: Black Ops 3 bundle (no movement)*

*Doesn't count towards October NPD

Yes, but everything you're saying is an assumption, whilst most people in this thread have been assessing the month based on facts. You assume that there are people buying a second XB1 and then go on to say it's crazy that they're buying a second XB1. You assumed something and then responded with a statement as if your assumption was 100% fact. It's still a 'wait and see' situation but it looks more likely (at the moment) that the PS4 will pip the XB1 for this month. It could change of course but there's no point in debating data we don't currently have. We DO know that the pre-orders for the Halo bundle didn't do as well as the Destiny bundles and we also know that the Halo bundle has been easily outsold this month, until now. Pre-orders are going to be the deciding factor.

Halo is gonna have to really take off to overcome The Destiny/TLOU/Uncharted combo. 

So glad sony cut this early, erases any gains the xbox could have had due to halo. AWE YIS.