Microsoft Game Studios President Phil Spencer has spoken to IGN about Halo 2 Anniversary as well as the next installment in the series which Spencer insisted is not Halo 5.
Commenting on Anniversary Spencer said "I'll be open. We have discussion about it. It's more about the right time and making sure that we really would do the right thing for the franchise.
"The Halo Anniversary that we did was as much about the launch of the first Xbox as well. It was a culmination of many things coming together," he continued. "It would probably run out of steam if we were trying to think about, 'Okay, what's 10 years old now?'
"It's definitely more from the game itself, the experience that we're able to bring to market. Less about 'is the last digit a zero?' in terms of its anniversary."
While an eleventh anniversary release in 2014 might seem odd Microsoft are releasing Fable: Anniversary to mark the game's ninth birthday later this year. It also wouldn't the first time Microsoft have released two Halo titles in one year with Halo Wars and Halo 3: ODST both being launched in 2009.
2013 marks the first years since 2008 in which no Halo title has been released on console although Halo: Spartan Assault is headed to Windows 8 devices.
Spencer has previously commented that the next Halo will be "legitimate" and it was also revealed that the title will be Reclaimer Trilogy, started with Halo 4, has become "a saga".