The official Star Wars Twitter feed has confirmed that the ship seen in the J.J. Abrams video message released earlier today is indeed an X-Wing.
X-Wing’s are known for being able to split their four wings, known as S-foils, by using four engines, thus forming the “x” shape from which they take their name. Fans are unable to see the engines or where the wings split in the video, leading some to believe that it may actually be a Z-95 Headhunter.
@CDCanimation It is in fact an Episode VII X-wing, not a Z-95.— Star Wars (@starwars) July 21, 2014
It’s possible that the engines and S-foil split that fans are looking are located on the backside of the ship, out of view in the video. Whatever the explanation, Lucasfilm has confirmed that it definitely is an X-Wing and not a Z-95 Headhunter.
Additionally, Lucasfilm has tweeted out some original Ralph McQuarrie concept art for the X-Wing to show fans how it works and hopefully further clarify any confusion.
Star Wars Episode VII comes to theaters December 18, 2015.