Yep. Make one. Charge 1k or more for it. Claim it as fastest graphics card and have the most premium card available all in one.AMD have done a Dual card for every Generation since the 3870x2 so i don't see why they would stop now if faster or slower. I think they also use dual cards in the professional sector so would make sense to bring a very low sales overpriced Radeon card.
For the rest of us release watercooled big Vega for £500 which performs close to 1080ti