Companies typically break down "early," "mid," and "late" into the following:
Early: Jan-Apr
Mid: May-Aug
Late: Sept-Dec
So expect Polaris to arrive anywhere from May to Aug.
Of course there are no such official statements. AMD needs to appease investors who are suffering because the stock price remains in the doldrums & needs to reassure them that AMD won't be going bankrupt anytime soon. This is why the minute they could show off Polaris silicon, they drummed up a lot of hype.
NVIDIA on the other hand can't afford to "Osborne" their current product lineup, so aside from "Pascal is coming in 2016" they basically need to STFU and not give too many details otherwise people who are "on the fence" about whether they want to upgrade or not might choose not to if they knew the exact Pascal product release dates.
With the "uncertainty" and "vagueness" in the air, people are more inclined to buy current NVIDIA GPUs should they need them now.
I think saying that ShintaiDK is "providing PR for NVIDIA" is uncalled for. Let me remind you that ahead of the Fury/Fury X launches, you were posting on practically every major forum (AnandTech, OCN, S|A) about how Fury was going to dominate NVIDIA's offerings.
Now, I'm not accusing you of "doing AMD PR," but the "enthusiasm" that some people here have for upcoming NVIDIA product is nowhere close to how aggressively you promoted Fiji and AMD around here in general. Why are you allowed to be enthusiastic about AMD's unreleased/unknown products but people like ShintaiDK aren't allowed to be enthusiastic about NVIDIA's upcoming products without being called "NVIDIA PR", especially when NVIDIA has a track record of delivering solid products (i.e. they ruined the Fury X launch for AMD with a cut-down GM200 that came outta nowhere)?
Anyway, I am excited about 14/16nm GPUs from both camps and am looking forward to a big upgrade once these new chips are out. I lean ever-so-slightly towards an NVIDIA card simply because I have a number of G-Sync monitors, but if AMD is out first/has a better product, I will pony up for a FreeSync display and sell a G-Sync one.