Little late in the game for a new thought, now with the end so near (and I don't remember being so anxious for a movie to come out since ESB first debuted such a long time ago...) but it occurs to me that, for continuity, it would be neat to see a MonCalimari squid guy or two in the rebel command center somewhere in the background. just for a moment, like the battle droid in ANHR.
When ROTJ came out, I remember thinking, who the heck are these guys, and why are they suddenly running the show?
I do remember reading that there will be no MonCal ships in the fleet at the end, but I don't recall reading why. Was there a specific reason? Otherwise it seems (barring some non canon EU back-story) the fish just seem to come out of nowhere to lead the charge.
My apologies if this has already been beaten to death somewhere else.....