Supernatural returns on Wednesday 3rd October with its 150th episode; spoiler about Sam

Just gonna repeat myself.. Supernatural returns on Wednesday 3rd October with its 150th episode. YAY! Jensen and co are currently prepping for episode 8.03. And according to the spoilers.. (look away now if you don't want to know).. there is a girl in Sam's life.

According to ZAP2IT, Amelia is a recurring love interest for Sam since Ruby (or Becky). Which is a strange way of putting it. Ruby...love interest... Anyhoo.. when are we going to get a spoiler about Sam's haircut?

Do you think Amelia is just an ordinary doctor or something else like supernatural something else or like Lisa?