As a group, the lawyers (solicitors, barristers and internal counsel) would have a feel as would others. And, it is self evident that City are confident and have been throughout (spending and other soft signals).
But there are no guarantees and I KNOW (yes from top, top, top sources), that they hope they landed some key arguments but that they recognise there is no certainty and litigation risk is substantial and real in all cases.
And both sides had multiple top KCs so you can be assured the PL also presented its case aggressively and with a high degree of quality.