In one of the early-ish episodes of Transformers: Headmasters (Japanese series) Rodimus goes off into space with Kup & Blurr to look for a new home for the Autobots. We hear nothing about them from this point on.
What happens to them? They are not referenced in the series that follow - Masterforce, Victory and Zone.
Did they just really need to get away from that whining brat Daniel?