I'm confused, we've confirmed polearms are in but spears so far are not?
Spears are a form of polearms, the most basic and often used form. I believe it was the first type of weapon ever invented, even cavemen would make a sharp stick and use it as a spear.
No spears, so we'll see what? Pikes, glaives and halberds? Pikes and halberds are basically spears with other forms of blades on them as well, so this information is definately either an error or very confusing.
Neither have technically been confirmed but in a screenshot of the Draugr you can see a pole weapon being used(most likely an axe) so that's pretty conclusive that they're in. We will not likely see spears though.
Spears are polearms indeed, but they are their own animal. Very few if any other polearms are used like spears. Other polearms can be swung horizontal/vertically while a spear is basically only good for thrusting.
Yes we'll likely see staves, halberds, poleaxes and the like. Which are in no-way similar to spears, other than being polearms.