I think the way NRL is growing and spending on things like PNG and Vegas etc. Don't be surprised if they decide to help fund the next game and get it away from Big AntYou hit the nail on the head with the comment on 'small customer bases'
I wouldn't expect that they've thrown that much money at a game like this.
I won't go into much detail over common practice, but I doubt they would have used previous generation consoles as a reason for using lower quality graphics.