Yes, there's no ASIC for ethash and equihash... it's purely rumored, the purpose of it may be to create FUD among GPU miners. Contrary to OP's subject, Re: GPU mining will die in 2018!, I'm 1M% certain it will never die this 2018 and beyond. I think OP is referring to this thread in which he's 3 comments/posts.

Also, it's good to note that Nvidia is going to release New Card Good for Mining Ethash Coins, so if it's true (and not just pure FUD) that GPU mining will die in 2018, then Nvidia will never launch and/or manufacture dedicated mining graphics cards as these would be useless.