Create - a - play. I have no idea why every sports game doesn't include this feature.....
I also would love to see more full court defenses. Including 1-2-2, 2-2-1, Corner traps, and any variation of zone/press defenses they can include.
I would also like the left button be shoot with left hand and the right button shoot with right hand.
Passing game as the OP said would be nice too.
.....oh and better player models....more bulk and variations.