All trees lead toward a progenote .
There are still inherently unsolved aspects of this hypothetical world. There are some RNA viruses which actually use translational proteins to initiate their RNA transcription. To put this number into perspective, it is more likely that you and your entire extended family would win the state lottery every week for a million years than for a bacterium to form by chance. There are still inherently unsolved aspects of this hypothetical RNA world of the Progenote, and therefore extensive uncertainties as to how LIFE on this world originated, let alone LIFE on other worlds.