(1) Bob, the black guy grabbed by the terminus cannibals was bit (but didn't say anything) and the terminus group will get infected and sick from eating him.
This will somehow come into play to save Rick's group from them.
(2) The priest who likely locked out members of his parish also made deals to supply the terminus people with people.
(3) Can't figure out the Beth angle. Daryl and Carol went after the car that took her. I think she is still alive, not a walker, but my guess is that she has turned evil and somehow joined terminus or something changed like that.