someone did indeed ask if Chromedome was just a redeco/retool of Dead End and Hasbro product designer John Warden told the group that the Takara designers started with a Dead End figure to develop a proof of concept of the Headmaster gimmick, so some of the engineering of that figure has a lineage that leads right into Chromedome.
So while it is a new mold/toy in every sense, it is not an oiginal mold thought up from the ground up. The entire toy is based on Dead End and built around that initial mold. It isnt an inspiration, it is a deliberate copy of the engineering. The best example I can think of is the one step RID Sideswipe toy. While it is made up of completely new parts, the mold is based off the One Step Drift and Prowl from AOE.


Now those are the facts. The interpretation of it being a retool or a fully original toy or not is up to the fans and their personal definitions and biases.