Well now. This morning there was a rumour. This afternoon there is a fact: Halo 4 will release worldwide on 6th November 2012.Apparently it's not just Number 4 in a series of so far... more than 3, it also "marks a new beginning for the landmark entertainment franchise". So be excited damn you.
You know you want the official hype to start, well...
"We are beginning a new saga with ‘Halo 4’ and embarking on a journey that will encompass the next decade of ‘Halo’ games and experiences.
"Millions of fans worldwide have been eagerly awaiting the opportunity to step back into the boots of Master Chief, and with
Halo 4 leading the charge, we’re confident 2012 will be the most successful year in Xbox history", so said Phil Spencer, corporate vice president of Microsoft Studios.
More info here.