I think it will be very popular but IP-driven dark rides have been a tricky area for Disney in the relatively recent past. I think Indiana Jones is going to be much easier to work with from an atmospheric perspective. Indiana Jones is IP based too, of course, but not something where there is an obvious association with Disney, so I think it was chosen in Disneyland because the atmosphere is very much in keeping with what you would want for a ride, not reverse engineered to highlight a particular IP.