As the press releases contradict either school of thought about the Edition 30 engine,
I don't agree that the press releases contradict at all.
OK, so there may be an element of ambiguity, but Audi clearly state upgraded engine internals, whereas VW make no such mention. However, VW clearly mention that the method of increased power in the Ed30 comes from "a revised engine management programme". You would have thought that IF the Ed30 DID have uprated internals, then VW would be shouting from the tree tops to make that particular point very clear. The simple fact is they didn't state any uprated internals, so we have to accept that, UNTIL there is concrete evidence to prove otherwise. Sadly, people quoting an incomplete part number, from non-genuine ETKA, continues to muddy the waters.
Another thing, whilst you all know my lack of "allegience" towards Superchips, I have great faith in the technical accuracy of Volkswagen Driver. The PDF of the Ed30 Bluefin as tested by Volkswagen driver also makes it very clear that the Ed30 does NOT share the same uprated engine internals of the S3.
I guess the way to confirm either way is to compare part numbers of say, cylinder head, from 4 models, using info direct from VW, Audi and Skoda dealers
GTI, GTI Edition 30, S3 and Cupra
I guess the "Skoda" bit was a typo! But yes, I agree. However, even then, I express some reservations, as it is fairly common for VW and Audi to either give out incorrect part numbers, not give them out at all, and even in some instances of pure muppetery - actually order completey incorrect parts.
Anything else is just hearsay otherwise
Well, I suppose if you are inclined to believe the "rumors", rather than factual information, then it can degenerate into hearsay!