Next week's episode, originally called "Rise" (I think they changed it to "Live Bait"), should give you a clue who it'll be centered around. The theme of the next couple few episodes is to frame what's happened to the Gov between the time he goes nuts on the road and shoots everyone from the last prison attack to the time we see him at the edge of the prison last night. Interestingly, if you've followed the comics, there should be some familiar names surfacing.
I believe the episode name change was because of Kirkman's "Rise/Fall" Governor off shoot novels of how he came to be in the first place and didn't want to confuse people with the name perhaps. Probably could have called next episode "re-rise" to be more accurate. Have to admit, the Governor is one bad-ass dude you just love to hate.
Should see a few new faces:
Audrey Marie Anderson (L....)
Alanna Masterson (T...)
Meyrick Murphy (M.....)
This is going to be a GREAT season ahead!