And if they're going by Roman numerals, that means that Mark X will be the 10th model. That seems like too many models throughout the years for them not to change up the appearance at all.
According to the Gospel of www.trask-industries.com is clearly states that the Marl X will be the first enhancement/redsign the Mark 1.
"As we celebrate five decades of achievement, we also bid farewell to regular production of the Mark I and shift our efforts to full-time manufacturing of the Mark X — our first complete overhaul of the Sentinel line. These highly anticipated units will combine next-generation nanotechnology and bioweapon breakthroughs, promising an even brighter future for the human race."

t:

that just went over my head
