So,.. Imax VR Centre in Toronto does use D-Box seats.I just contacted Cineplex to confirm and yes the new Imax VR Centre uses D-Box seats for the following:
SPACE FLIGHT ORBITAL EMERGENCY
Space Flight VR Experience delivers a state of the art, hi-octane interactive space flight which needs to be experienced to be believed. Experience Integrated into state of the art motion platform
https://www.cineplex.com/VR#box2bg I didn`t ask how many seats ( they didn`t seem to know much) but the Other Imax VR Centres recently opened in L.A., New York and Shanghai typically have 4 D-Box seats. There are other VR experiences that are seated and may also be used with the D-Box seats. For example I know Eagle Flight uses D-Box seats in L.A. and I won`t be surprised if the 4 man Star Trek: Bridge Crew experience will end up using them too.
If anyone lives near Scotiabank Theatre in Toronto, it would be good if you could go check it out and let us all know what you think. GLTA, Go D-Box!