Famitsu is currently holding an online survey for those who played Gravity Rush 2. They will apparently be creating an article based on the survey for the next issue of their magazine (scheduled to be released on April 6, 2017), and some of the replies to the survey may be included in the article. The survey will be closed on March 20th. While it’s in Japanese, Google Translate is sufficient to understand the total of 24 questions. You can find the link to the survey here.
Given that it’s obviously aimed at their Japanese audience, and the fact that it’s not an official survey from Sony, there’s probably not much point in fans outside of Japan filling out the survey. That said, it does make me consider creating a similar survey for fans in the West.