I'VE DISCOVERED FACTUAL TREASURES!
Firstly, yes, Supernatural has indeed done the "soap-opera year" and despite being "one year later", it is still somehow 2012.
Secondly, Kevin Tran's date of birth is December 2nd 1993, making him nearly 19 years old,
Kevin is also an Agnostic, and he's using a credit card under the pseudonym Kevin Park.
We also get to find out Amelia's DOB: April 20th 1980, making her three years older than Sam.
Anyway, that was my fun for the evening. :)