I don't like the sound of this. It's still too restrictive. Since when did the Word Bearers have an abnormally low vehicle count? Or Night Lords? And ask Daemons how first-turn DS goes for them. Wow, I get lots of fragile, un-transportable models clogging my fire lanes in turn one. Dark Apostles and Daemomancers I like, as do I like the idea of multiple types of Daemon.
Overall, I call wishlisting because they've listed Dark Apostles seperately to Chaplains. Pretty sure GW wouldn't make that big a fluff blunder unless they're changing the fluff radically.