I remeber that concept. I thought it was the Escape platform, either way not a real Bronco chasis. When I do finally re-do my 68 I hope to build a clean daily driver.I have a '73. Bought it in January of 1990. I keep wishing Ford would build a new one with proportions similar to the classic '66-'77, with a fully removable hard top and a basic interior that can be hosed out, but that won't happen.
The last concept they made was based on an FWD/AWD minivan platform that was being produced in Mexico or Brazil. It had unit body construction. It was kinda cool looking, but the specs read more like a mall crawler than a rock crawler.