Two things IMHO need to be added to the mainsite.
First and foremost, short synopses for Episodes 5 and 6 like the existing synopses on the mainsite's "game" page. As fans, why not post ideas here for what can go there? (Try not to include spoilers)
Update the chatroom info. It doesn't seem that anyone actually goes to the room much at all. Also there's the whole inaccessibility thing because you require the person to get an IRC client to even get there. There's a more accessible alternative IRC available but most people here don't know about or don't remember it.
Saying much more here might breach into advertising, so I'll leave it at that.