We now know the following:
The HH books will be released in trilogy's, with the first trilogy centring around the Isstvaan Campaign.
Book 1: Betrayal
Book 2: The Drop Site Massacre
Book 3: Part 2 of Istvaan V and the battle of Phall
Book 2 includes: Due in a few months
Book 3 includes: Due end of year
Expect more Primarchs
More legion Special Units
Whats the next Trilogy???
Book 1 Prospero (So presumably Space Puppys and 1001 sons)
Book 2 Calth (Smurfs? more world eaters/bearers?)
Book 3 Signus (Blood Angels & maybe Daemons?)
Dudes that burn a civilization to the ground
Emperors Children Termi varient
First iteration of the evolution of Noise marines... Pete will buy over 9000 of these
New Legion tanks. Me likely!
Apparently has many weapons variations. Looks like twin link Autocannon here
New Drop pod (ship) that can move after it lands and causes impact damage
Mechanicum Dreadnoughts... Must resist...
Not a chance. 3 will do right?
Loving the Mechanicum love!
Apparently we will see more Titan varieties
Erebus is done.
But he is awaiting best buddy Kor Phaeron for the large scenic base (like Abbadon & Loken)
Yo yo dis iz ma drop pod, it go drop like dis yo.
The Emperors Courtyard
And last but not least, Another Fulgrim. He looks a bit different than the other leaked images