2014

January

 * January 8: The second issue of Halo: Escalation is released.
 * January 21:
 * Halo: Mortal Dictata, the third and last book of the Kilo-Five Trilogy is released.
 * Halo: Initiation Hardcover edition is released.
 * January 31: Halo: Spartan Assault is released on Xbox 360.

February

 * February 4: 343 Industries closes a multi-book deal with Gallery Books (a division of Simon & Schuster), who will publish all future Halo written fiction, marking the end of 343's contract with Tor Books.
 * February 26: The third issue of Halo: Escalation is released.

March

 * March 26: The fourth issue of Halo: Escalation is released.

April

 * April 4: Halo: Spartan Assault is launched at Steam.
 * April 23: The fifth issue of Halo: Escalation is released.
 * April 28:
 * 343 Industries and Microsoft reveal a new Halo series directed by Ridley Scott.
 * Red vs. Blue Season 12 begins.
 * April 29: GameRanger acquires Halo PC, Halo Custom Edition and Halo: Combat Evolved Trial hosted servers.

May

 * May 28: The sixth issue of Halo: Escalation is set to be released.
 * May 31: GameSpy will shutdown Halo PC, Halo: Combat Evolved Trial, and Halo Custom Edition hosted servers.

June

 * June 9 - June 12: Halo will be present at the E3 2014.
 * June 25: The seventh issue of Halo: Escalation is set to be released.

July

 * Unknown date: Two Master Chief figures are set to be released by McFarlane Toys, and will be based on Master Chief's appearance in Halo Xbox One and Halo 2.
 * July 23: The eighth issue of Halo: Escalation is set to be released.

August

 * The ninth issue of Halo: Escalation is set to be released.

September

 * The tenth issue of Halo: Escalation is set to be released.

October

 * The eleventh issue of Halo: Escalation is set to be released.
 * October 21: Halo: Escalation Volume 1 is set to be released.

November

 * The twelfth and final issue of Halo: Escalation is set to be released.

Unknown dates

 * 343 Industries will provide an update regarding the future of Halo 2 Vista.
 * An unnamed Halo novel is set to be released.
 * Halo Xbox One, the second game of the Reclaimer Saga, is set to be released.