I think you guys are overcomplicating this a little. The reason Prime is getting new toys is probably because it's the "safest" option compared to Animated or UT. It was a popular, award winning show, and the designs fit nicely within the WFC aesthetic. Animated, while loved by many fans, was controversial when it first came out because of the art style and new way of storytelling. Plus, the designs would look weird next to G1 and BW designs, and if they changed the style they risk upsetting fans. UT would actually have been a decently safe bet, but then again younger fans and their parents wouldn't really resonate with them as much. I will admit that this is mostly anecdotal evidence, but I'm just trying to look at this through Hasbro's perspective.