last update for 950&950xl made I very clear that Microsoft will be publishing world wide updated at once and if you remember we had a leaked documents some weeks ago which hinted the rollout day for some devices on 16th December and others in February ..... Which means we will have the windows 10 mobile's first wave rolled out on 16 December.And even if my speculation gets wrong then we will get it before the carrier bound devices.
I can say because the carriers test the official updates to further level for their specifics , which requires the official updates to be ready for the unlocked versions .
Since orange Poland is expected to be rolling out the updates on 16 th December to a subset of Lumias, therefore we will have either the same day update or before 16th..