Board Thread:Legitimate Canon Questions/@comment-20061173-20150519083833/@comment-4091815-20150519184501

Ethan said he couldn't stick around in that final scene with Danny.

Danny then turned the tables and broke up with him first but it was clear from what Ethan was saying that he wasn't planning on staying in Beacon Hills.

I have no idea about the rest of your question since future events are not canon.