I really don't see how EUV will make costs go down when a EUV litograph costs 100M upfront, consumes something like 100 times the power a regular UV litography machine and sensitive parts exposed to plasma have a lifecycle of a few months.
Patterning becomes easier, the yield per wafer is higher and the process becomes faster.
For mass production you want the yields, everything else pales in comparison to good yields cost-wise. EUV is the only feasible way to make 7nm cost effective for any consumer tier product. Until then, you can kiss goodbye to any hope of Ryzen 2 on 7nm.
Its not without reason literally every chip architect is pushing for transition to EUV.
@ the chart above: for a broad view of performance, this is fine, but you can also see that a 7700K at 4.2 Ghz is already a good 10% ahead of Ryzen *across* a number of games of which the majority is NOT CPU LIMITED.
Now enter a CPU limited game and the value will shift in favor of the higher clocked CPU. On top of that the 7700K can clock much, much higher than 4.2. The realistic CPU performance metric should be focusing on the worst-case scenarios where you push both CPUs to 100% utilization and then compare the FPS. Only that will really tell you the performance gap between the two.