Having been in corporate litigation for 25+ years, I would be pretty surprised if the PL (or City, for that matter) wasn't being bullish about their chances of winning right up to the moment they got the decision. In most cases, you don't fight a fight like this and not become something of a true believer. And with the "political" nature of both the PL and this particular dispute, I think that's only more likely to be true.
I think the most important kernel from
@Nicholas van Whatsisface is that the PL still doesn't know anything. We've been told no one will know until it actually drops, and this seems to me to be further indication of that being the case.