The Interior of Monorail Lime has been redesigned. Disney has taken out the large middle supports in each car and replaced it with four poles and one overhead handrail. This definately increases the capaciy of the train. Now, every car can easily accomodate a stroller. Each car could also accomodate a wheelchair, however I’m not sure if Disney would allow you to use any cars other than those designated as such and are equipped with a ramp.
I asked a cast member if all of the monorails will be redesigned like Monorail Lime and he said “Eventually.” This is the prototype and has been in service now for three months with good guest feedback. From his point of view, it makes the job easier.