From their Facebook page:

Here is a list of some big time "rumors" we got before recording last night:

Imperial Knight Titan: 1 kit will make all the versions.

Imperial Knight Titan Codex: Three armies in this book.
1st Army: Imperial Knights Army
2nd Army: Mechanicum Army
3rd Army: Freeblades Army (Mercs that can ally)

Warhammer 40k 7th Edition (Yes it is called 7th ed) in May.

Astra Militarium (Imperial Guard):
Stormtroopers (plastic)
Bullgryns (old Ogryns)
Commissar Squads
New Larger Transport

Stormtroopers, Commissar Squads, and Bullgryns are Astra Auxilary. These units may be taken as "plug-ins" to other Imperial armies.

Catachans and Cadians are covered in the new codex. Catachans are not going to direct only.

Orks are in June.