White Destiny bundle for PS4 has sold 300k in September 2014. ( 56% of the total PS4 sales = 538k )
The bundle track 4 weeks.
The XBO bundle with Halo 5 will track only one week.
Here my guess for October:
XB1: 400,000
Halo bundle: 25% ( so, 100k )
Halo 5: 2,100,000
For another comparation, Advanced Warfare bundle ( with the game at 1.46 million ) has sold 200k in 4 weeks (including Black Friday).
Halo 5 will sell a lot of console, but i believe many people will buy another SKUs of XBO, most likely some SKUs at 399$, not 499$. If MS will sell this bundle at 300 / 350 $ during Black Friday, that's going to be MASSIVE.