Most things that have been mentioned.
I would like a real in-depth production feature from the first sketch to the premiere. That would be so cool. production designs, uniform designs etc etc.
A few interviews and BluRay exclusive features, like an Enterprise tour or the same panoramic views we had on the official site.
Oh, of course, a commentary by JJ, Roberto and Alex wouldnt go a miss, and an additional commentary with Shatner.
"Course your not,your not scared of anything. Box falls out the sky, man falls out of box, man eats fish custard. Look at you, just sittin' there,you know what i think? Must be helluva scary crack in your wall" - The Doctor