Some more documentation was added
to the application this morning. Nothing particularly exciting or that gives away what ride system is planned but, if this is designed to split FV in half, the queue line will start on the Nemesis 'half' of the area. Also, a quarter of all themed fence panels are to receive a decorative motif (which has been hidden for planning purposes)
Also, the updated 3D model document states that the two cylinders (like the cube) are to show the maximum extent of the themed features and that the final form may alter. So maybe they are just theming and not necessarily anything to do with the mechanics of the ride system. The wording could be interpreted either way, either they are elements that have been added and themed, or they're features of the ride system that are to be themed.