Since the disclosure of the game Gravity Rush 2 exhibition Tokyo last year 2013 and the game did not see the light after that, a lot of rumors surfaced about the game project and the person who stands behind "Keiichi Toyama" spoke to the magazine Dnczyk Playstation number this week to get the new update:
"Been a long time since you have received any information concerning the project for the new game Gravity Rush, but the players will understand the reason behind it once viewed promotional offers for the game."
There are a lot of rumors, the fact that the game is now for your Playstation 4 instead of feta, and may be this is the main reason behind the disappearance of the game, especially the first part was originally for PlayStation 3 before being transferred to the Vita.
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I've been saying this would get released on the PS4 ever since i've noticed they've been reluctant to reveal information on this. And what else could he be referring to when he says this? Also note how he doesn't mention Vita. Usually when these developers are working on Vita games they often refer to it as 'a Vita project' or 'the upcoming Vita game'.