One legal question: If (for arguments sake) Unite win at the High Court, is BA actually required to revert back to the old crewing levels, or is it just required to pay damages for breach of contract (which on an individual crew level must be tiny)?
As our common law system works on the basis of damages, I think it may be later.
One other point, two lets of legal teams in London are now going to have their meters running until 1 February. The total cost of this case will reach a seven figure sum in next to no time. Whoever loses is going to be hit with a huge legal bill. If BA loses, it may well just be added to the crew savings target.