To me that should've been a major question for HB Studios, "If the fans buy this game in droves, and you put out some DLC that gets eaten up like mad, will that give some hope of a Rugby 2013 to build on it all and keep the franchise going strong, or is this likely a four yearly World Cup product"?
To me people are being greedy and worrying about this game as though it's the last Rugby game of all time and aren't concerned if there's a chance to re-build the franchise up over 2-3 instalments.
Then if we get a Rugby 2013 or even a 2014, you end up with more and more of these extra (and to my mind less important) features.
It's not entirely inconceivable that if (and that's a big IF) the game is a huge success, EA would quickly come sniffing around to have the franchise back and snap up any sequels. Look at their recent exploits with MMA and (slightly earlier) Burnout.
That or they'd commission a rugby ***le of their own and get exclusive licenses on everything. Again, something else they have previous form for doing...