Fantastic news!
Just like you Tomcat, I was planning on creating the Powder River Basin route in TSW, but the route editor will not be released until sometime 2018. Since you mentioned the TSW Route editor I will include the following: I asked "Jay" over at DTG TSW forums if he had any news to share regarding the TSW editors, link here
https://forums.dovetailgames.com/thread ... -say.2520/ I railfanned parts of the Moffat sub, the whole Orin line and MRL Billings to West of Mullan Pass this spring. Had two whole days on the Orin Sub alone, first day was great, lots and lots of trains, second day was terribly slow. But Coal is down so.... With your Orin sub and Buzz and his team doing the MRL TS is looking more promising by the day.
Back on topic ( sorry buzz )
I had plans to create the Orin line in TS instead after I wrap up work on my current project first. However, upon reading your announcement I can safely say I will abandon my plans. Having seen and enjoyed your work on the Cajon route, I know the Orin line is in the best route editors hands. Thank you Tomcat for taking this on.
Huh? Whats that? You promise to finish the route?

I do have some diagrams and track charts covering the Orin line. I picked up the documents from the "old" MTS Orin line version. The route came with a ton of information regarding operations and more. Send me a PM if you need them.