There will be no ASIC for Ethereum because it is a memory-intensive algorithm rather than a CPU intensive one (GPUs are just many CPUs plugged together). So there will never be one for it.
I do not think so, many advanced mining rigs has already done, using GPU and memory as in video cards. I googled "ethereum asics" and found devices like this one
https://www.nvminer.com , they call it an asic, but it still use NVidia GPUs. however, the hashrate and power consumption are more profitable, than graphic cards.
you mean you are the scammer that made the website nvminer.com and want to lure in suckers? lol nice try....obvious scam is obvious