This arrived in my inbox, a new Imperial Guard Formation that we can only assume is going to be a part of the new Sanctus Reach Expansion going up for pre-orders this coming weekend.
Please remember that these are still rumors until we get official launch information.
via an anonymous source on Faeit 212
The Steel Host Formation
1 Tank Commander
3 Leman Russ Squadrons
1 Hydra
Elite Tank Crews: The tank commander and all vehicles in the formation within 12" have preferred enemy.