The main problem with any WCC is that teams are coming into it cold ,straight from pre season with probably a very different team to the one that qualified them to take part.
I would think a better way would be to put the emphasis on top of the table being champions ,top four from here & down under in the WCC & remainder of SL teams to play off for a sky end of season trophy ,final at OT.That would still produce some good competitive matches.

So, I think I'm with it.

Can (and how many, if so) any League 1 teams be promoted into the Championship? and conversely, can (and how many, if so) any Championship clubs be relegated into League 1?

The more I think about the restructure the more i like it. The big problem that most people have seemed to have with the current structure is the perceived apathy to the weekly rounds as clubs only really have to be in the top 8, which for the better sides hasn't proved to be a problem. The issue the rfl had is that when it was a top 5 or 6 there were too many dead rubber games which also didn't engage the fans.

Under the new system the teams at the bottom will find they are in a promotion battle after the first 20 rounds, the top 8 face a really big battle to make the 4 and there is the potential for well run clubs in the championship to make the transition to the top 12 having already played superleague sides and proved their worth to get there. Also the sides who find themselves in the bottom tier have a trophy to play for rather than just trying to avoid relegation or being happy to make mid table.

There should be very few dead rubber games under this format, I really like the way the rfl have thought outside the box on league structures. Also good luck to any team with any aspirations to make the top 4 if they think they can show any apathy to the weekly rounds, this season has shown that it is not easy to make the top 4. With only 3 points separating 1st and 5th every single match should be viewed as a must win.

Now all they need to sort out is the standard of the officiating and the removal of Eddie and stevo and everybody will be happy.

Every game would also be meaningful if top meant champions.