Of all the vans, I'm interested what the Transit will bring us.
The biggest thing is that M-B lays down the law of what an upfitter can and cannot do, and it is pretty strict (such as no 4WD conversions).
I assume Ford will give more freedom (assuming one doesn't cut a support strut or hack-job the CANBUS run), so things like outside storage compartments which were common on the old Chevy Express vans might make a return. Ford also has bet the house on their turbocharging technology, so it makes me curious how the performance and MPG statistics on the EB and the turbocharged I-5 diesel will be.