To be honest, I am kind of losing interest in the series. I don't know, but aside from the beautiful background of the 20's, I find too many stories and too many characters.
Bitch and moan, bitch and moan... that's all you ever do.
On the bright side, it looks like a lot of the loose ends and side stories will be tied up soon.
The "big connection" for me was finding out that the commodore is Jimmy's father.
FWIW- I find it funny that Van Alden, through his misguided fervor, did away with one of Nucky's sources when he drowned his assistant.