Nikola is still working on their hydrogen electric trucks, though they're still a couple years away from actual production in the US, they expect some to roll out of the Iveco factory in Germany within the next year. Supposedly they've received some serious interest from companies in Europe and the US.
They offer cabovers exclusively (thus the European interest), and have said that many US companies are interested in the coes, for better maneuverability...
...the heyday of cabovers here was before my time, but from what I understand, they were mostly a response to length laws, and when those laws were changed the cabover pretty quickly faded away, other than the FL Argosy which hung around for a while, though they were never very popular. I don't think that cabovers will ever catch on again as long haul/over the road trucks, but as for local and regional work, I could definitely see where they would have an edge. UPS is a company I could see being interested in them, for one.
I would doubt that there would be many drivers that would want to drive them though, getting in and out is a real pain, and if you are in a wreck, you are definitely the first one there.
Aerodynamics are also an issue; you can't do very much to make a box aerodynamic, though for local work, that wouldn't really be an issue.
I believe other companies have been gauging the interest in cabovers; the Volvo HQ in Greensboro, NC has several types of cabovers sitting around.
As for looks, I don't really mind the Euro cabovers, some look pretty sharp, and the interiors appear pretty well laid out.