It's inevitable that the Gov will re-appear in future episodes with a bigger force in tow.
One arc of the TV storyline that I'm hoping will make a re-appearance is the Latino gang from the 1st season ...... it was done well, since it showed that not everything has turned darkside in the ZA.
Who knows ..... a merger with Rick's group might be in the works.
Rick's Prison Gang + Latino Gang = A lot of old folks