Are there any updates on roads being added to the PU?

There are no plans, at least within the next few months, to do anything with roads. It's a matter of priority, and it's been decided that broader environmental elements are a higher priority than more specific elements like roads, because this allows them to focus on the content they need to continue to create, rather than focusing on just what they've got so far. (I understand this to mean that their priority is getting all of the planetary bodies in Stanton ASAP, as well as continuing work in that area so that they can ensure their pipeline is getting faster and faster, which is necessary if they're going to get other solar systems done in a reasonable amount of time - focusing on things like roads would be a distraction from this).