I am looking forward to seeing BOTH versions, and I presume I will get a chance to do it during Media Day, if not, I will "push" a friend into the viewing room
But the capacity of the subs is already VERY low, expected around 1,000 to 1,200 per hour. They will only get 1,200 per hour if they run all 8 subs, and load and unload in about 3 minutes.
Converting ONE sub to allow a lift would remove a LOT of the 40 seats in one of the subs, and also reduce the loading time, as they would want to "secure" the chair, similar to riding the tram or the public bus. That would add a few minutes to the load/unload time, and cut capacity probably in HALF!
I think Disney has come up with a solution that addresses the problem, and allows capacity to remain about the same, while addressing those who cannot walk down the stairs.
Also, as I understand it, they are planning to require that ALL folks, even those with Stair passes and Wheelchairs to wait in the Man Queue (and the expected long wait) until reaching the loading area, where folks will be able to get into the "Alternative" viewing room queue instead of queuing up for one of the Sub Loading Queues.
I am sorry that life is not always totally fair, but if the ride had to be totally accessible, Disney would have never started the project.
So I am glad they tried to address those who could not use the stairs and gave them another option.