Hey Andrew,
Good to see you again. I'm glad to see you back and hope to see some progress on that switching layout. In answer to your question, Railpro doesn't care where it gets its power from. DC, DCC, Railpro (filtered DC) power, battery, etc....it's all the same to Railpro. Railpro uses the power from DCC without regard to the DCC signal. All Railpro functions will work as normal.
On a side note, Railpro does have backwards compatibility with DCC, should you want it. It practice you will likely never use the function, but it's there. If desired you can turn on DCC mode on the locomotive modules, then control the Railpro-locomotives with a DCC controller and run them with your other DCC-equipped locomotives. It goes without saying that you lose all Railpro functionality when running in DCC mode. No load-sharing, no two-way communication, etc. But it works. I'll post a video on it soon.
-Kevin