Disney just filed for this patent. Guardians work has already begun. I can’t see this being for guardians. You don’t file for a patent after you’ve already started construction because if you don’t get the patent approved your plans need to change.Robert Niles at Theme Park Insider brought up that maybe this is the Guardians ride system. He says that he was told the new ride system will be a grown up version of the 7DMT swaying. Would also explain the need for the building to be 11 stories talk.
http://www.themeparkinsider.com/flume/201710/5759/