tristan,
i think that tech spec on the CD website is more like "this is the maximum number we can reach" kinda stuff. so this time with FS700, like Mr. Martinez from Sony USA says, " Odessy 7Q will record 2k in CinemaDNG up to 240fps, and 4k DPX up to 30fps" is correct spec for us right now. that's my guess.
I think Sony will keep the full spec for FS700's 4K solution with their own products only. I don't know maybe years later we might able to get even XAVC codec option for Odyssey but for now they only gave a bit of taste for Convergent Design and let us choose, you know.
however, it sounds fair and we can decide whichever we want. we can go cheaper with Odyssey for limited 4K, or we can play with Sony's combo for 4KRAW burst 120fps! CRAZY!!
and of course, we can record 2K240fps anyway! that's amazing!!