Good, 'cause I hated MMI with a passion.
I don't mind if they focus on Deunan, but sidelining Briareos is a big no-no. The rest of the ESWAT crew can be minimized without hurting the story, but the Deunan/Bri interaction was always one of the strong points of the manga. But like you said, perhaps we'll get that in the sequels.
And a SAC movie would kick so much ass it wouldn't even be funny. Instead, we'll have to wait and see what Innocence has in store for us.