What happened to the Lumia 950 XL's rumored pen?

[Windows Central]

For the last few months, I have been talking up the Lumia 950 XL including the smart cover and Surface-style pen. To be clear, this isn't a rumor. I have images from Microsoft with the Lumia 950 XL, Pen, and Cover, and I know for a fact it was something being planned.

So, what happened and is the pen still coming?

Full story from the WindowsCentral blog...