Intel is trying to avoid 10nm fiasco with going baby steps (Intel 7 > 4 > 3> 20A > 18A) instead of jumping to a new node in a single shot. 5 Nodes in 4 years is more like 2.5 nodes in 4 years in Intel's old nm terms.
I do wish Intel to do well this time. I do not want to see TSMC being only game in town when it comes to leading edge nodes and Samsung has not been providing good competition for years.