On making it to Wembley, there'll be a lot more southerners there as there was in 99. A lot of whom then didn't follow the team as it was faltering in SL, or maybe they were just curious. This was then followed by a 2000 season that was below what we had experienced in SL (Second Last). We then recruited people like incumbent Origin and Test players and finished 6th.
I suspect it may attract more people, but if it's like 99, not many want to watch a crap team. Which is why attendances and long term followers on this forum have just jacked it in.