I booked. Via Orbitz.
I had a hell of a time getting priced for 4 pax.
via Delta website only after the payment page "sorry fares changed". It had to do with 1 leg only 2x in I and 2x J available or so.
via orbitz did get dates.
only........lol........ 2 pax now have 2 etix and 2 not yet.
going to wait it out a few days as actually the dates aren't that best (didn't find any other dates where 4 pax was possible at all).
UPDATE: i got 1 PNR for AF (shows 5 legs) and 1 PNR for CZ (guess that one is the REP-CAN leg i can't see on the AF PNR)