I didn't mention the Melville/Cocteau "Enfants" because it's already out in France (2 DVD edition, with extras all available in CC's "Trilogy" set) and in the UK on BFI (not perfect, but very well rendered nevertheless, with optional English subs and, if I remember correctly, even an audio commentary).
More Cocteau would certainly be welcome. L'aigle may be minor, but surely a package coupling it with Antonioni's version would be eminently marketable. Oberwald is hardly my favourite Antonioni, but it's an intriguing experiment.
Ah, I never even heard that there was an Antonioni version, being not all too familiar with that director's work. Is this the original Cocteau text, or something completely new? In any case, this would certainly be a fantastic coupling!
As for L'Eternel retour, there'd be good mileage in a 'Cocteau as directed by' set which could deliver the big hits of that film, the Melville and Franju's Thomas l'Imposteur, plus the curiosity value of the Antonioni and Rossellini's Voix humaine. If you're going to randomly speculate, you might as well be grandiose about it!
Quite true, give it to us now, Criterion! That said, I always found the Franju rather slow-going and unintriguing. Apparently, there's no new French restoration of "Retour"either. I heard somewhere that the French did have some problems with the film when it came out because they thought Cocteau was espousing 'German/Aryan' aesthetics with it.. you know, the "Tristan and Isolde" theme and that very BLONDE and short-cropped Jean Marais. And perhaps they still feel uneasy about it, but then: it's a masterpiece, really, and deserves to be seen.
I remember that Cocteau also wrote the dialogue for a film called "Ruy Blas", but know nothing about it...