The IG tanks that have been in the codex but which did not have models will be released. So, expect a Griffon/Collosus/Medusa artillery kit .
We will also see Stormtroopers and Veterans released and will include many, many optional bits to build command squads and even penal troops.
Plus, there will be a Horus Heresy era tank.
Looking forward to this! So start saving now!
Nykona