The rumours of 1180/2080 only 8% faster than 1080Ti are starting to make sense when you take a look at the difference in dies of the two architectures. A lot of the die space is dedicated to ray tracing by the time that feature is fully taken into games will most likely take another 2 years by that time much better cards would be out.
I think unless AMD manage to perform a miracle here they are about to be relegated to very low- low mid tier cards. They would need another 40% speed bump to VEGA64 to keep up with 1180/2080 if their estimated speeds are correct. Just don't see that happening even on 7nm unless they can add more processing units and cores for a bigger die, to me no matter how much lipstick you put on VEGA its not going to compete, they need something new. Its better for AMD to just concentrate on professional market and console gaming. Those i presume are so much more lucrative than anything they sell to us gamers. I think Sony have sold something like 80+ million PS4, so that is basically 80 million CPU and GPU they have sold.
I really hope another of these big companies starts to make GPU because i don't fancy paying almost £1000 for mid tier cards by NVIDA in few years time.