I presume you are referring to the old (& disavowed) presentation with the Falcon X and Falcon XX:
Yeah, Both the FX & FXX clearly were marketed to NASA for the SLS contract(s). That goes for the Merlin 2 engine as well.
While FX & Merlin 2 might happen eventually, they are clearly on the back burner - especially with the focus now being on a reusable F9. (Where 9 smaller engines is actually an advantage)