Apparently the hearing on costs was delayed until next Friday. However, it seems like counsel for one (or both) of the two pilots associations has said they might be looking for "indemnity costs". I don't know what those are (but I suspect that they are not likely to be pleasant for Ryanair).
Apparently the words in court were to the effect that the association lawyers wanted Ryanair's lawyers to know that this would happen next week. Given the comprehensive defeat that Ryanair has suffered it seems highly probable that costs will be awarded against them (whatever of "Indemnity Costs" I know nothing).