I'd be shocked if it takes as long as a year for the first neural 3D engine to be released.
There's considerably more conceptual distance between "dalle but 3d" and "dalle but emits practical product designs rather than concept art" than there is between dalle and 3d dalle.
How much money are you willing to bet that there would be an AI producing working clothing designs from prompts in 1 year? If it's less than your yearly salary, even you don't believe this crap.