Earlier this year, Microsoft announced that they would start pushing out Windows 10 Mobile to existing Windows Phone 8 users in December. Now they have updated their statement with the information that the rollout will not start until early 2016.
“This November we introduced Windows 10 to phones including brand new features such as Continuum and Universal Windows Apps with the introduction of the Lumia 950 and 950 XL. The Windows 10 Mobile upgrade will begin rolling out early next year to select existing Windows 8 and 8.1 phones.”
In my opinion it does not really matter if the update starts rolling out now or in January because all people who want to have Windows 10 Mobile can already get it. All other people will not really care about Windows 10 Mobile.