Patch first then official announcement of new game (the MMO).
I don't know if it is gonna work like the old IL2 series anymore, I would expect the MMO to be a completely separate game and not an expansion to CloD (using same engine, but I doubt it will integrate into CloD).
Once the MMO is out it will take all of MG's time to maintain that so I doubt we will get a stand-alone (non-MMO) BoM now...
This is all speculation, of course...