The guys at IGN podcast unlocked speculated that Halo 5 was looking at a earlier release than November a while back because of the Halo 5 artbook had a release date of August 11th. that someone found on the Amazon website.

here's the link.
http://www.amazon.com/The-Art-Halo-5-Guardians/dp/1608876497

Same date I got predicted.

Now that Zelda and Uncharted are delayed Microsoft be like

I'm thinking it will still be September. I think they want it for the pre Holiday season. Cause it will help sell consoles before the Holiday rush.

Here are some other release dates in the US:

Halo: Combat Evolved - November 15, 2001
Halo 2 - November 9, 2004
Halo 3 - September 25, 2007
Halo Wars: February 26-27, 2009 (Japan/Aus, EU) March 3, 2009(USA)
Halo 3: ODST - September 22, 2009
Halo: Reach - September 14, 2010
Halo : Combat Evolved anniversary November 10, 2011
Halo 4 - November 6, 2012
Halo: Spartan Assault: July 18, 2013 (PC/Phone) Xbox One: December 24, 2013
Halo MMC: November 11, 2014

Halo generally release in September or November

Yeah, I've known about this for a week or so now . They are going to build up E3 hype. My theory is that Microsoft in their deal with Square will probably give Rise of the Tomb Raider a little bit of breathing room, because launching anywhere near Halo (much like launching next to Uncharted) might hurt its chances of selling well enough. I am also calling Halo 5 bundles and Tomb Raider bundles.

A September release date seems reasonable.. Let's hope it won't get delayed like the 2 other games!

I predict Septmber 25th to coincide with Halo 3

when it does come out , i will glady buy it at launch. I am ready to continue the fight. :)

Well it's been rumoured to be delayed to 2016, seems likely.