Spoke with my friend at FCA, he did in fact confirm a lot of what you have said so far, but only on the Dodge side, Dodge coming back is fact, their issue is this, the will not come back with a start up team, they want to come back with a team that can deliver them a championship. FCA is putting its focus back into its racing programs.
The part about RCR and RPM , as he said, putting the pieces in place, so things are happening , and he said, talks are talking place. He said something else but I am going to keep that to myself for the time being, just because of Reddit