You might have a tougher road to hoe than just reviving a name, considering three of the brands you listed (four if you consider Imperial as a brand) are defunct (Mercury, Oldsmobile, Plymouth). I’m leaving IH off the list with Rio’s post about VW bringing back the Scout.
Well, Chrysler has a history of rebadging model names (Neon, Imperial, Voyager,) My trillionaire idea would be to start a new company called Orphan motors, With different models under appropriate names. One line would be the “Retro” line, featuring the new 2025 Retro Rocket.