These may in fact be the thing that's coming later this year instead of a new starter. Take with salt.
via an anonymous source on Faeit 212
The Armageddon War is on its way. The starter box contains Blood Angels vs Orks and probably some plastic scenery. Armies will be released in single, fairly large boxes (probably around £50) with fully playable forces straight out of the box. Think half a company of Space Marines + tanks + thunderhawk, or a titan legions box set with an Imperator titan, Warlord titan, and accompanying reavers, warhounds and knights. The initial release will be just Space Marines, Orks, Titan Legions and Imperial Guard.
The kicker: it will be 10mm scale rather than 6mm. Infantry is currently being tested at 4 guys on a round base but it has been tested at both 5 man and 3 man bases.