Is there any timeline on when more information will come out about this Node.JS service that’s been added? 
Pretty excited to hear details. (If I’ve missed them and they’re out already, point me in the right direction!)
Not yet. The service was added in Version 2018.1 to facilitate the transition once it becomes an official feature of 2018.2, scheduled for October/November.
So it’s normal that I’m getting errors when I try to start this service in windows?
My server is throwing an error that it can’t start the PP Workflow Node.js service ever since I updated to 2018.1.
Yes it’s normal because it isn’t enabled by default. If you want to activate it in your version, you have to create the following REG_DWORD registry key and set its value to 1:
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Objectif Lune\PlanetSuite\PlanetWatch\8.0\ppNode\ppNodeEnabled
Once you restart Workflow, you will see you have a new NodeJS Server Input, which works almost exactly like the HTTP Server Input. There are also new NodeJS-specific sections in the Workflow Preferences.
Just like with the standard HTTP Input, the NodeJS service will be launched by Workflow whenever it finds a process that starts with a NodeJS Server Input.
Note that the NodeJS feature is not deemed complete in 2018.1, which is why it is not enabled by default. Our Support staff will not be able to help you with any issue you may encounter when running it.