Microsoft Studios Head Phil Spender has revealed there are more Xbox One exclusive titles to be unveiled this year, TrustedReviews.com reports, leaving many gamers wondering if Halo 5 will be included.

"We will have announces in 2014, already working on the plan. I want to have a great E3 this year", Spencer wrote on Twitter.

Xbox One's "Hitman" will experience a return of the game's Contracts mode, leaving many gamers wondering if it will make it one of the more popular games on the next-generation console.

The "Hitman" series creator IO Interactive released a open letter to fans mentioning that the game will retain the "core" of the series, that is, being able to use a "wide range" of tools to take out a diverse group of targets at a global scale, GameSpot.com reports.

Kotaku listed Assassin's Creed IV Black Flag as one of Xbox One's best games, leaving many wondering if it will be the next-generation console's best zombie-related game.

"Finally this year, with the pirate-themed Assassin's Creed IV: Black Flag, the series has taken a major and unequivocal step forward. It doesn't lose all of the series' bad habits-hello, follow missions-but it improves many longstanding problems with better stealth, easier-to-navigate cities, and sidequests that actually feel like they help make your character more powerful," the website writes.

PlayStation 4 sold 4.2 million units through the end of 2013 which is approximately 1 million more than its competitor Xbox One, CNN reports, leaving many wondering if the Sony next-generation console has a better games list.