So it turns out there aren't any 7nm EUV in high volume ( comparatively speaking ) shipment from TSMC as originally expected. While this isn't confirmed, I would assume Apple to have make a bigger announcement in Keynote if they were using 7nm EUV, since they only mentioned 2nd-Generation 7nm, this is likely an improved version of 7nm DUV, aka N7P ( 2nd Generation 7nm is also an Semi Official Term TSMC uses to describe N7P, while specially mentioning EUV when it is involved ).

The question we have now, would Apple A14 be 7nm EUV, or would it be 5nm? If it is 5nm as the original cadence suggest, then we could expect 3nm EUV A16 in 2022.

And Intel doesn't plan to ship their 7nm EUV till late 2021, in a volume likely much smaller than anything currently Apple ships.