Gracious, a new Todd Pod!
I don't think they raised the overall height of the 'main' roof Simon, they reprofiled it so the door and awning rail could be higher, whilst adding an extra few inches in width. If you look at more recent Trolls in comparison with earlier models you'll see the roof is less bulbous in shape, so I don't think you get any additional head clearance to the roof, but you do get better door clearance and about four inches extra across the van. The washroom benefits by being four inches deeper.