Dark Talon: Rift cannnon (no rules sited), hurricane bolters and stasis bomb (one use only, dropped on an enemy for - 3 WS and - 3 I)

Niphilim fighter: heavy bolters, blacksword missiles (no rules sited, but the battle report later in the issue mentions that the fighter is supposed to be good at taking on enemy flyers, so I guess the missiles are for that), avenger mega bolter/lascannon.

Deathwing Command: multiple options incl. apothecary and standard bearer. A "Champion" wielding the "massive halberd of Caliban" is mentioned and there's a picture (no rules sited).

Deathwing Knights: Terminators with WS5, Storm Shields, power mauls and special rules, incl. Hammer of
Wrath and "Smite" which makes them strike at S10 AP2 for one round. BTW both DW terminators and the knights can be fielded in units of 10 now! Oh and the DW can take plasma cannon and they have USR "split fire"!!!!

Land Speeder Vengeance: AC/HB, plasma storm battery (mentioned in the battle report to be able to fire either 3 small blasts or 1 large blast, I'm guessing plasma stats).

Darkshroud: HB/AC, Shrouded USR and conferes Stealth to allies within 12", and it has a rule that gives units +1 to charge distance (as far as I can read - the picture is quite small and hard to read, so perhaps it's plus 1 to something else).

RW Black Knights: plasma talons (instead of bolters, no rules sited, and not being called twin-linked plasma gun/pistols leads me to believe the rules could be a bit different), corvus hammer (no rules sited, but I guess they are power mauls), they also have the option of a RW grenade launcher.

Sammael: pretty much the same as before, as far as I can tell, though with a 4+ inv.save (which is confered to the land speeder if he chooses that instead) - can't remember if that's new.

Dreadnaught: has option for dual twin-autocannons, venerable dreadnaught has "DW vehicle" rule
Rules mentioned:

DW knights and black knights have a rule called "Inner Circle" and in the battlereport it is mentioned as giving them some form of re-roll in close combat.

New rule calles DW Vehicle

DW assault rule is mentioned in the battle report as ensuring a DS in turns 1 or 2 with no dice roll needed, decided by the DA player before the game begins.

There are more special rules mentioned but no rules sited.
DW, DW command and knights are in the same box.
RW command and RW black knights are in the same box.