FUJI Q HIGHLAND
2017 to 2018 - Attack on Titan 4D Ride - (5/9/17) It's been reported that the new Attack on Titan attraction at Fuji-Q Highland opened on April 20th, and will run only through to May 6, 2018. From what I'm told this is a temporary attraction placed inside the park's existing Flying Theater attraction that was added back in 2014 and was previously known as Fuji Airways.
From the sound of things, a ride on the new Attack on Titan version is not included with park admission, and will cost you 1,000 Yen (about $9) to experience.
(3/21/17) According to this article a new Attack on Titan ride will soon open at Fuji-Q Highland. Based on the graphics shown in the article, it looks like the ride system is very similar to Disney's Soarin' style ride system, putting the riders up in front of a large 20m screen to fly around as the massive Titans attack in 4D. This is part of an Attack on Titan themed area that will also includea 360º VR theater experience.
Sadly, this seems to be a temporary attraction for the next year, and is only set to run at the park from April 20, 2017 through to May 6, 2018.