Here's a blog post with spy shots of the models and release dates from Samsung for Lollipop. This is when they expect to drop it to the carriers, so that means expect it to be 30-90 days after that before we see it in our hands, most likely. Samsung Android 5.0 Lollipop Update Schedule, List It looks like most Note 4 models will be releasing in Q1 of '15. So Feb-April most likely release for most carriers. The info from this post is about 30 days old, so some stuff may have changed.