Xbox One BC Fanfare [BC Database] "10 new titles for January. Titles will release when available from now on" - "BC is region free" - "Free multiplayer for 360 games played on One"

[captain carot]

Known games, (likel)y for the december update:
Bioshock
Bioshock 2
Bioshock Infinite
Call od Duty Black Ops
Fable 3 (not listed yet)
Halo Wars
Halo Reach
Rainbow Six Vegas
Rainbow Six Vegas 2 (both coming with Rainbow Six Siege)
Skate 3

So half the december update is actually known. The other half might be arcade games again.