If things had kept going normally from '94 onwards, crowds would be out of sight. As it was, Super League sent everything massively in arrears. IMO crowds started to noticeably grow from around... say 2003 when some of the Sydney clubs began to do well. 2005 was a high-water mark due to Sydney clubs (and NQ) doing well, and the attractiveness of the on-field product, due to a fast play-the-ball.
Melbourne will grow this year, likely a significant increase. Warriors, Titans and NQ will probably be a let-down due to on-field performance or expensive tickets.
The big thing will be Sydney clubs. I think it's very likely that
Saints,
Dogs,
Tigers,
Souths,
Eels,
Roosters
will all be in the top 8 come the end of the year. If they all meet each other in form, we'll see mega crowds. This will create more hype and good-will, the like of which we saw at the end of last year. We will be gaining the benefits of the great success of the end of last year.
I think this year will see us with the biggest crowd average ever. Hopefully Brisbane and the Warriors can chip in with some big averages along the way.