If they can somehow pull this off without it effecting the online gaming, go for it. I am not sure if there will be any snow if we are deep in the south again but a bit of frost and seeing your breath at night can work. I would like to see rain now and then too.
Hell if they want to, they can go beyond this and bring in cults. I don't know about you guys, but a good cult story is scary to me. They have had so many over the years. It would be very good too in the western setting.
I am guessing once the game comes out, you may need some higher rankings or to update this.
Heavy forum users can easily hit 400. I know some of my friends who get that in a month on an active forum. lol