Dean is my favorite character on the show, but John wins runner-up for me. John is pretty much counting this as a chance to start over. Even if he realized Dean was in town (which will likely take a time since fuck smartphones, what the Hell is SMART about the thing? Can you even make a PHONE CALL on it?), he wouldn't actively seek him out. As far as he's concerned, he's screwed his boys up enough. They deserve a chance to live on their own terms.
I think I've written John in every fandom game I've ever been in. LOL
He's an oldie but goodie. Hopefully you like my portrayal.