One thing that I'd love to see with GF II would be getting to play as young Vito.
And yea, NPC control would be nice. They did it with GTA: San Andreas where you could recruit gang members. Plus organizing things such as extortions and having drive-by hits and such would be a good plus as you moved up in the ranks.
What do you think this is the Army, where you shoot'em a mile away?
You've gotta get up close like this and bada-bing! you blow their brains all over your nice Ivy League suit.