I mean look at the gpu business. They had 28nm for 4 years. Then there cam 14nm. No step in betwwen. The next real step is 7nm.
Intel is now 14nm for four years. Next stop 10nm then 10nm+ then 10nm++ 10nm is broken. Ice Lake is based on 10nm+. But I think they have to produce at least one sku of cpus in 10nm to see how it works.
I think this 10nm process is strong. There was a massive jump from Geforce 980ti(28nm) to 1080ti(14nm).