So based on what i've seen from the previews, even with the extended outdoor queue, there isn't a lot of queue space for this ride and with it about to be the big in-demand ride at Epcot, I actually think it makes sense that it will start out with BGs. I do think that it won't last all that long with BGs though, especially with GotG coming up next in Epcot and Tron in MK.