Thanks!! I do want to point out though, that the cab section is there, should WDW decide to "reintroduce" driving pilots... At the same time, there's a cool feature I'm looking into, which would require (for me) that the trains still have a cab...
The intended plan is to keep them as "initiators" to open doors, close doors, start the train, and many are hoping they'll still have ability to drive the trains through an override should something happen.
Disney's goal was to keep the position, but tweak it, if I'm correct...

You've made a good point, but my designs kinda has some cool feels to it, should it work out like I'm wanting... With the Mark VI's, if I"m correct, the drive/load tires aren't filling the entire wheel well, and are maybe half the height of the train... My goal/idea is to open up the train a little more with "half walls" between the cars... The pilot's cabin and the passenger cabin were to be separated in my plan, but utilize a half wall, with a glass type division between the two... If it worked, it would allow for guests to see through the front of the train, while still remaining a safe distance, and not bothering the driver or attendant... These half walls can also feature small step ladders to allow for the emergency escape should something happen, and open up the train a little, while still keeping the individual cabins. It would allow more air flow, as well as the ability to open the atmosphere some, so sorry "Nighttime Beamway High Club", that'll be gone...
As mentioned, the plan was to move the lights to the skirts, and kinda give a feel like that of Disneyland, but I'm really leaning torwards LED strips, as they are brighter, and look more futuristic. The rear of the train (as mentioned) would have red lights, while the front would have white. Reverse lights are also an option, as they are identifyable at day or night, and can help with visibility.