At the beginning of 2019, FlightBeam and iBlueYonder hinted that they may bring their rendition of Portland International Airport to X-Plane 11. In a Facebook post from iBlueYonder today, it has been confirmed KPDX is indeed coming to X-Plane 11. X-Plane 11 previews and further information will be unleashed as development progresses.
iBlueYonder have released four sceneries for X-Plane 11 including Pearson Field and Nantucket, all of which you can find here.
Disclaimer: the images used in this article are from the above Facebook post from iBlueYonder, for Prepar3D.