According to this story, the Alaska Democratic Party is thinking of replacing its gubernatorial nominee, Byron Mallott, with independent gubernatorial nominee Bill Walker. If that happens, Mallott would be the Lieutenant Governor candidate on the unified ticket.
An official decision is expected on Tuesday, September 2. For proponents of this idea, it is fortunate that Alaska election laws permit parties this flexibility. This is exactly the sort of creative behavior that is barred by states like South Dakota, which does not permit parties to nominate non-members.