That's the inspiring thing about the EU and UK regulatory frameworks: the penalties can be more than a slap on the wrist. Apple is playing a dangerous game by continuing to flout EU law and pursue a maximalist, scorched-earth strategy. Reputation matters, and they are not making friends by re-upping false arguments at every turn.
I think thats unlikely since they can extract revenue any time they want by other mechanisms. The desire here is to control the surface of enagement in their jurisdiction not revenue. Very little income is acquired for the state through court action, Taxation cases aside.