Alfa Romeo/Sauber released today a video on their Youtube Channel about their simulator, you can see at 0:34 the rFPro logo. There are some info about how close is rF2 to rFpro about physics?.
RFpro and RF2 are run from 2 different business, and while RFpro and ISI had some kind of partnership, I don't remember Studio 397 ever mentioned RFpro. RFpro run on very powerfull computers,nothing that our PC can handle probably, so they are probably world far apart even in the remote chance they share some parts of the physics code, this doesn't mean much.