I've compared the French, UK, German and Japanese Amazon contents listings.
Two important Berlioz compositions are missing in all four:
-- 'Les Francs Juges' incomplete opera: a half-hour of fragments survive (and were broadcast by the BBC in 1970)
-- Berlioz composed a new Prelude for use when 'Les Troyens' was split over two nights. Prelude to 'Les Troyens à Carthage’ (Acts 3-5 of the original opera). Recorded by Colin Davis, Charles Dutoit and Yoav Talmi (Naxos).
Doesn't mean they won't be in the finished box.
Still waiting for Warner's website to provide track listings.